1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
content / public / browser / content_browser_client.h [blame]
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
#define CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
#include <stddef.h>
#include <map>
#include <memory>
#include <optional>
#include <set>
#include <string>
#include <string_view>
#include <variant>
#include <vector>
#include "base/containers/flat_map.h"
#include "base/containers/flat_set.h"
#include "base/functional/callback_forward.h"
#include "base/memory/read_only_shared_memory_region.h"
#include "base/memory/scoped_refptr.h"
#include "base/supports_user_data.h"
#include "base/time/time.h"
#include "base/types/strong_alias.h"
#include "base/values.h"
#include "build/build_config.h"
#include "build/buildflag.h"
#include "build/chromeos_buildflags.h"
#include "components/browsing_topics/common/common_types.h"
#include "components/download/public/common/quarantine_connection.h"
#include "components/file_access/scoped_file_access.h"
#include "content/common/content_export.h"
#include "content/public/browser/allow_service_worker_result.h"
#include "content/public/browser/auction_result.h"
#include "content/public/browser/certificate_request_result_type.h"
#include "content/public/browser/child_process_security_policy.h"
#include "content/public/browser/clipboard_types.h"
#include "content/public/browser/commit_deferring_condition.h"
#include "content/public/browser/digital_identity_interstitial_type.h"
#include "content/public/browser/digital_identity_provider.h"
#include "content/public/browser/file_system_access_permission_context.h"
#include "content/public/browser/frame_tree_node_id.h"
#include "content/public/browser/generated_code_cache_settings.h"
#include "content/public/browser/interest_group_api_operation.h"
#include "content/public/browser/interest_group_manager.h"
#include "content/public/browser/legacy_tech_cookie_issue_details.h"
#include "content/public/browser/login_delegate.h"
#include "content/public/browser/mojo_binder_policy_map.h"
#include "content/public/browser/privacy_sandbox_invoking_api.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/storage_partition_config.h"
#include "content/public/common/alternative_error_page_override_info.mojom-forward.h"
#include "content/public/common/page_visibility_state.h"
#include "content/public/common/window_container_type.mojom-forward.h"
#include "device/vr/buildflags/buildflags.h"
#include "media/mojo/mojom/media_service.mojom-forward.h"
#include "media/mojo/mojom/remoting.mojom-forward.h"
#include "mojo/public/cpp/bindings/generic_pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/system/message_pipe.h"
#include "net/base/schemeful_site.h"
#include "net/cookies/cookie_setting_override.h"
#include "services/cert_verifier/public/mojom/cert_verifier_service_factory.mojom-forward.h"
#include "services/metrics/public/cpp/ukm_source_id.h"
#include "services/network/public/mojom/ip_address_space.mojom-forward.h"
#include "services/network/public/mojom/network_context.mojom-forward.h"
#include "services/network/public/mojom/proxy_config.mojom-forward.h"
#include "services/network/public/mojom/restricted_cookie_manager.mojom-forward.h"
#include "services/network/public/mojom/url_loader_factory.mojom-forward.h"
#include "services/network/public/mojom/web_sandbox_flags.mojom-forward.h"
#include "services/network/public/mojom/web_transport.mojom-forward.h"
#include "services/network/public/mojom/websocket.mojom-forward.h"
#include "storage/browser/file_system/file_system_context.h"
#include "third_party/blink/public/common/mediastream/media_devices.h"
#include "third_party/blink/public/common/permissions_policy/permissions_policy.h"
#include "third_party/blink/public/common/user_agent/user_agent_metadata.h"
#include "third_party/blink/public/mojom/ai/ai_manager.mojom-forward.h"
#include "third_party/blink/public/mojom/browsing_topics/browsing_topics.mojom-forward.h"
#include "third_party/blink/public/mojom/file_system_access/file_system_access_cloud_identifier.mojom-forward.h"
#include "third_party/blink/public/mojom/file_system_access/file_system_access_error.mojom-forward.h"
#include "third_party/blink/public/mojom/manifest/manifest.mojom-forward.h"
#include "third_party/blink/public/mojom/origin_trials/origin_trials_settings.mojom-forward.h"
#include "third_party/blink/public/mojom/payments/payment_credential.mojom-forward.h"
#include "third_party/blink/public/mojom/worker/shared_worker_info.mojom.h"
#include "ui/base/page_transition_types.h"
#include "ui/base/window_open_disposition.h"
#if (BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_MAC)) || BUILDFLAG(IS_FUCHSIA)
#include "base/posix/global_descriptors.h"
#endif
#if BUILDFLAG(IS_POSIX) || BUILDFLAG(IS_FUCHSIA)
#include "content/public/browser/posix_file_descriptor_info.h"
#endif
#if !BUILDFLAG(IS_ANDROID)
#include "media/capture/mojom/video_effects_manager.mojom.h"
#include "services/video_effects/public/mojom/video_effects_processor.mojom-forward.h"
#include "third_party/blink/public/mojom/installedapp/related_application.mojom-forward.h"
#endif // !BUILDFLAG(IS_ANDROID)
namespace net {
class SiteForCookies;
class IsolationInfo;
} // namespace net
class GURL;
// TODO(ellyjones): This synonym shouldn't need to exist - call sites should get
// the definition from LoginDelegate directly. Migrate all users over, then
// delete this.
using LoginAuthRequiredCallback =
content::LoginDelegate::LoginAuthRequiredCallback;
namespace base {
class CommandLine;
class FilePath;
class Location;
class SequencedTaskRunner;
} // namespace base
namespace blink {
namespace mojom {
class DeviceAPIService;
class ManagedConfigurationService;
class RendererPreferenceWatcher;
class WindowFeatures;
enum class WebFeature : int32_t;
enum class WebDXFeature : int32_t;
} // namespace mojom
namespace web_pref {
struct WebPreferences;
} // namespace web_pref
class AssociatedInterfaceRegistry;
struct NavigationDownloadPolicy;
struct RendererPreferences;
class StorageKey;
class URLLoaderThrottle;
} // namespace blink
namespace device {
class GeolocationSystemPermissionManager;
class LocationProvider;
} // namespace device
namespace gfx {
class ImageSkia;
} // namespace gfx
namespace media {
class AudioLogFactory;
class AudioManager;
class ScreenEnumerator;
} // namespace media
namespace mojo {
template <typename>
class BinderMapWithContext;
} // namespace mojo
namespace network {
class SharedURLLoaderFactory;
class URLLoaderFactoryBuilder;
namespace mojom {
class TrustedHeaderClient;
class URLLoader;
class URLLoaderClient;
} // namespace mojom
} // namespace network
namespace service_manager {
template <typename...>
class BinderRegistryWithArgs;
using BinderRegistry = BinderRegistryWithArgs<>;
} // namespace service_manager
namespace net {
class AuthChallengeInfo;
class ClientCertIdentity;
using ClientCertIdentityList = std::vector<std::unique_ptr<ClientCertIdentity>>;
class ClientCertStore;
class HttpResponseHeaders;
class SSLCertRequestInfo;
class SSLInfo;
class URLRequest;
} // namespace net
namespace network {
namespace mojom {
class NetworkContext;
class NetworkService;
class TrustedURLLoaderHeaderClient;
} // namespace mojom
struct ResourceRequest;
} // namespace network
namespace sandbox {
class SandboxCompiler;
class TargetConfig;
namespace mojom {
enum class Sandbox;
} // namespace mojom
} // namespace sandbox
namespace ui {
class SelectFilePolicy;
class ClipboardFormatType;
} // namespace ui
namespace ukm {
class UkmService;
} // namespace ukm
namespace url {
class Origin;
} // namespace url
namespace storage {
class FileSystemBackend;
} // namespace storage
namespace content {
enum class SiteIsolationMode;
enum class SmsFetchFailureType;
class AnchorElementPreconnectDelegate;
class AuthenticatorRequestClientDelegate;
class BluetoothDelegate;
class BrowserChildProcessHost;
class BrowserContext;
class BrowserMainParts;
class BrowserPpapiHost;
class BrowserURLHandler;
class ClientCertificateDelegate;
class ControllerPresentationServiceDelegate;
class DevToolsManagerDelegate;
class DipsDelegate;
class DirectSocketsDelegate;
class FeatureObserverClient;
class FontAccessDelegate;
class HidDelegate;
class IdentityRequestDialogController;
class LoginDelegate;
class MediaObserver;
class NavigationHandle;
class NavigationThrottle;
class NavigationUIData;
class PrefetchServiceDelegate;
class PrerenderWebContentsDelegate;
class PresentationObserver;
class PrivacySandboxAttestationsObserver;
class PrivateNetworkDeviceDelegate;
class ReceiverPresentationServiceDelegate;
class RenderFrameHost;
class RenderProcessHost;
class ResponsivenessCalculatorDelegate;
class SerialDelegate;
class SiteInstance;
class SpeculationHostDelegate;
class SpeechRecognitionManagerDelegate;
class StoragePartition;
class TracingDelegate;
class TtsPlatform;
class URLLoaderRequestInterceptor;
class UsbDelegate;
class VideoOverlayWindow;
class VideoPictureInPictureWindowController;
class VpnServiceProxy;
class WebAuthenticationDelegate;
class WebContents;
class WebContentsViewDelegate;
class WebUIBrowserInterfaceBrokerRegistry;
class XrIntegrationClient;
struct GlobalRenderFrameHostId;
struct GlobalRequestID;
struct OpenURLParams;
struct Referrer;
struct ServiceWorkerVersionBaseInfo;
struct SocketPermissionRequest;
#if BUILDFLAG(IS_ANDROID)
class TtsEnvironmentAndroid;
#endif
#if BUILDFLAG(IS_CHROMEOS_ASH)
class TtsControllerDelegate;
#endif
#if BUILDFLAG(IS_CHROMEOS)
class SmartCardDelegate;
#endif
// Embedder API (or SPI) for participating in browser logic, to be implemented
// by the client of the content browser. See ChromeContentBrowserClient for the
// principal implementation. The methods are assumed to be called on the UI
// thread unless otherwise specified. Use this "escape hatch" sparingly, to
// avoid the embedder interface ballooning and becoming very specific to Chrome.
// (Often, the call out to the client can happen in a different part of the code
// that either already has a hook out to the embedder, or calls out to one of
// the observer interfaces.)
class CONTENT_EXPORT ContentBrowserClient {
public:
// Callback used with the `IsClipboardPasteAllowedByPolicy()` method. If the
// paste is not allowed, nullopt is passed to the callback. Otherwise, the
// data that should be pasted is passed in.
using IsClipboardPasteAllowedCallback = base::OnceCallback<void(
std::optional<ClipboardPasteData> clipboard_paste_data)>;
// Callback used with the `IsClipboardCopyAllowedByPolicy()` method.
// If the copy is allowed, nullopt is passed to the callback and `data` is
// expected to be copied. Otherwise, `replacement_data` should be written in
// plaintext to the clipboard.
using IsClipboardCopyAllowedCallback =
base::OnceCallback<void(const ui::ClipboardFormatType& type,
const ClipboardPasteData& data,
std::optional<std::u16string> replacement_data)>;
// Records the detailed reason for ShouldUseSpareRenderProcessHost returning
// .
//
// LINT.IfChange(SpareProcessRefusedByEmbedderReason)
enum class SpareProcessRefusedByEmbedderReason {
DefaultDisabled = 0,
NoProfile = 1,
TopFrameChromeWebUI = 2,
InstantRendererForNewTabPage = 3,
ExtensionProcess = 4,
JitDisabled = 5,
V8OptimizationsDisabled = 6,
kMaxValue = V8OptimizationsDisabled,
};
// LINT.ThenChange(//tools/metrics/histograms/metadata/browser/enums.xml:SpareProcessRefusedByEmbedderReason)
virtual ~ContentBrowserClient() = default;
// Allows the embedder to set any number of custom BrowserMainParts
// implementations for the browser startup code. See comments in
// browser_main_parts.h.
// |is_integration_test| is true iff MainFunctionParams::ui_task was set and
// will thus intercept MainMessageLoopRun (i.e. in integration tests -- ref.
// BrowserMainParts::ShouldInterceptMainMessageLoopRun for additional control
// the embedder has over that).
virtual std::unique_ptr<BrowserMainParts> CreateBrowserMainParts(
bool is_integration_test);
// Queues `task` until after the startup phase (for whatever definition of
// "startup" the embedder has in mind). This may be called on any thread.
// Note: prefer to simply post a task with BEST_EFFORT priority. This will
// delay the task until higher priority tasks are finished, which includes
// critical startup tasks. The BrowserThread::PostBestEffortTask() helper can
// post a BEST_EFFORT task to an arbitrary task runner.
virtual void PostAfterStartupTask(
const base::Location& from_here,
const scoped_refptr<base::SequencedTaskRunner>& task_runner,
base::OnceClosure task);
// Allows the embedder to indicate whether it considers startup to be
// complete. May be called on any thread. This should be called on a one-off
// basis; if you need to poll this function constantly, use the above
// PostAfterStartupTask() API instead.
virtual bool IsBrowserStartupComplete();
// Allows the embedder to handle a request from unit tests running in the
// content layer to consider startup complete (for the sake of
// PostAfterStartupTask()).
virtual void SetBrowserStartupIsCompleteForTesting();
// Returns true if the embedder is in the process of shutting down, whether
// because of the user closing the browser or the OS is shutting down.
virtual bool IsShuttingDown();
// Indicating that the thread pool will terminate shortly.
virtual void ThreadPoolWillTerminate();
// If content creates the WebContentsView implementation, it will ask the
// embedder to return an (optional) delegate to customize it.
virtual std::unique_ptr<WebContentsViewDelegate> GetWebContentsViewDelegate(
WebContents* web_contents);
// Allow embedder control GPU process launch retry on failure behavior.
virtual bool AllowGpuLaunchRetryOnIOThread();
// Called when GPU process is not used for compositing. Allow embedder to
// control whether to shut down the GPU process to save memory, at the cost
// of slower start up the next time GPU process is needed.
// Note this only ensures the GPU process is not used for compositing. It is
// the embedder's responsibility to ensure there are no other services hosted
// by the GPU process being used; examples include accelerated media decoders
// and encoders.
virtual bool CanShutdownGpuProcessNowOnIOThread();
// Notifies that a render process will be created. This is called before
// the content layer adds its own BrowserMessageFilters, so that the
// embedder's IPC filters have priority.
//
// If the client provides a service request, the content layer will ask the
// corresponding embedder renderer-side component to bind it to an
// implementation at the appropriate moment during initialization.
virtual void RenderProcessWillLaunch(RenderProcessHost* host) {}
// Notifies that a BrowserChildProcessHost has been created.
virtual void BrowserChildProcessHostCreated(BrowserChildProcessHost* host) {}
// Get the effective URL for the given actual URL, to allow an embedder to
// group different url schemes in the same SiteInstance.
virtual GURL GetEffectiveURL(BrowserContext* browser_context,
const GURL& url);
// Returns true if effective URLs should be compared when choosing a
// SiteInstance for a navigation to |destination_url|.
// |is_outermost_main_frame| is true if the navigation will take place in an
// outermost main frame.
virtual bool ShouldCompareEffectiveURLsForSiteInstanceSelection(
BrowserContext* browser_context,
content::SiteInstance* candidate_site_instance,
bool is_outermost_main_frame,
const GURL& candidate_url,
const GURL& destination_url);
// Returns true if the user intentionally initiated the navigation. This is
// used to determine whether we should process debug URLs like chrome://crash.
// The default implementation checks whether the transition was initiated via
// the address bar (rather than whether it was typed) to permit the pasting of
// debug URLs.
virtual bool IsExplicitNavigation(ui::PageTransition transition);
// Returns whether all instances of the specified site URL should be
// rendered by the same process, rather than using process-per-site-instance.
virtual bool ShouldUseProcessPerSite(BrowserContext* browser_context,
const GURL& site_url);
// Returns true if process-per-site feature could be used for multiple main
// frames. Actual usage of the feature may depend a number of heuristics.
// This is different than `ShouldUseProcessPerSite` where process-per-siste
// is required for the correct functionality of the site.
virtual bool ShouldAllowProcessPerSiteForMultipleMainFrames(
BrowserContext* context);
// Returns whether a spare RenderProcessHost should be used for navigating to
// the specified site URL. If the spare render process can be used, the
// function will return an empty value. Otherwise the detailed reason will be
// returned.
//
// Using the spare RenderProcessHost is advisable, because it can improve
// performance of a navigation that requires a new process. On the other
// hand, sometimes the spare RenderProcessHost cannot be used - for example
// some embedders might override
// ContentBrowserClient::AppendExtraCommandLineSwitches and add some cmdline
// switches at navigation time (and this won't work for the spare, because the
// spare RenderProcessHost is launched ahead of time).
virtual std::optional<SpareProcessRefusedByEmbedderReason>
ShouldUseSpareRenderProcessHost(BrowserContext* browser_context,
const GURL& site_url);
// Returns true if site isolation should be enabled for |effective_site_url|.
// This call allows the embedder to supplement the site isolation policy
// enforced by the content layer. Will only be called if the content layer
// didn't decide to isolate |effective_site_url| according to its internal
// policy (e.g. because of --site-per-process).
virtual bool DoesSiteRequireDedicatedProcess(BrowserContext* browser_context,
const GURL& effective_site_url);
// Returns true if a sandboxed document with `precursor` as the opaque
// origin's precursor, and the specified `url`, is allowed to be put into a
// separate process, if the IsolateSandboxedIframes feature is enabled.
// Defaults to true, but allows embedders to skip isolated sandboxed frames
// for certain cases.
virtual bool ShouldAllowCrossProcessSandboxedFrameForPrecursor(
BrowserContext* browser_context,
const GURL& precursor,
const GURL& url);
// Returns true unless the effective URL is part of a site that cannot live in
// a process restricted to just that site. This is only called if site
// isolation is enabled for this URL.
virtual bool ShouldLockProcessToSite(BrowserContext* browser_context,
const GURL& effective_url);
// Returns whether a new set of CanCommitURL restrictions on navigation
// commits in ChildProcessSecurityPolicy should be applied. Defaults to true.
// TODO(https://crbug.com/326250356): Remove this once the Android WebView
// crashes are fixed.
virtual bool ShouldEnforceNewCanCommitUrlChecks();
// Returns a boolean indicating whether the WebUI |url| requires its process
// to be locked to the WebUI origin. Note: This method can be called from
// multiple threads. It is not safe to assume it runs only on the UI thread.
//
// TODO(crbug.com/40447789): Remove this exception once most visited tiles can
// load in OOPIFs on the NTP. Ideally, all WebUI urls should load in locked
// processes.
virtual bool DoesWebUIUrlRequireProcessLock(const GURL& url);
// Returns true if everything embedded inside a document with given scheme
// should be treated as first-party content. |scheme| will be in canonical
// (lowercased) form. |is_embedded_origin_secure| refers to whether the origin
// that is embedded in a document with the given scheme is secure.
//
// See also WebSecurityPolicy::RegisterURLSchemeAsFirstPartyWhenTopLevel() in
// the renderer, and the network::mojom::CookieManagerParams fields:
// 1. third_party_cookies_allowed_schemes (corresponding to schemes where
// this returns true regardless of |is_embedded_origin_secure|), and
// 2. secure_origins_cookies_allowed_schemes (corresponding to schemes where
// this returns true if |is_embedded_origin_secure| is true),
// which should both be synchronized with the output of this function.
//
// TODO(chlily): This doesn't take into account the
// matching_scheme_cookies_allowed_schemes, but maybe we should remove that
// anyway.
virtual bool ShouldTreatURLSchemeAsFirstPartyWhenTopLevel(
std::string_view scheme,
bool is_embedded_origin_secure);
// Similar to the above. Returns whether SameSite cookie restrictions should
// be ignored when the site_for_cookies's scheme is |scheme|.
// |is_embedded_origin_secure| refers to whether the origin that is embedded
// in a document with the given scheme is secure.
// This is a separate function from the above because the allowed schemes can
// be different, as SameSite restrictions and third-party cookie blocking are
// related but have different semantics.
virtual bool ShouldIgnoreSameSiteCookieRestrictionsWhenTopLevel(
std::string_view scheme,
bool is_embedded_origin_secure);
// Gets a user friendly display name for a given |site_url| to be used in the
// CDM process name.
virtual std::string GetSiteDisplayNameForCdmProcess(
BrowserContext* browser_context,
const GURL& site_url);
// This method allows the //content embedder to override |factory_params| with
// |origin|-specific properties (e.g. with relaxed Cross-Origin Read Blocking
// enforcement as needed by some extensions, or with extension-specific CORS
// exclusions).
//
// This method may be called in the following cases:
// - The default factory to be used by a frame or worker. In this case both
// the |origin| and |request_initiator_origin_lock| are the origin of the
// frame or worker (or the origin that is being committed in the frame).
// - An isolated-world-specific factory for origins covered via
// RenderFrameHost::MarkIsolatedWorldAsRequiringSeparateURLLoaderFactory.
// In this case |origin| is the origin of the isolated world and the
// |request_initiator_origin_lock| is the origin committed in the frame.
virtual void OverrideURLLoaderFactoryParams(
BrowserContext* browser_context,
const url::Origin& origin,
bool is_for_isolated_world,
network::mojom::URLLoaderFactoryParams* factory_params);
// Returns a list of additional WebUI schemes, if any. These additional
// schemes act as aliases to the chrome: scheme. The additional schemes may
// or may not serve specific WebUI pages depending on the particular
// URLDataSource and its override of URLDataSource::ShouldServiceRequest.
virtual void GetAdditionalWebUISchemes(
std::vector<std::string>* additional_schemes) {}
// Returns a list of additional schemes allowed for view-source. Defaults to
// the list of WebUI schemes returned by GetAdditionalWebUISchemes.
virtual void GetAdditionalViewSourceSchemes(
std::vector<std::string>* additional_schemes);
// Computes the IPAddressSpace of the given URL with embedder knowledge.
// This is used to assign values to special schemes recognized only by the
// embedders of content/. Returns kUnknown if no such scheme was found.
// See https://wicg.github.io/private-network-access/ for details on what
// the IPAddressSpace represents.
virtual network::mojom::IPAddressSpace DetermineAddressSpaceFromURL(
const GURL& url);
// Called when WebUI objects are created to get aggregate usage data (i.e. is
// chrome://downloads used more than chrome://bookmarks?). Only internal (e.g.
// chrome://) URLs are logged. Returns whether the URL was actually logged.
virtual bool LogWebUIUrl(const GURL& web_ui_url);
// http://crbug.com/829412
// Renderers with WebUI bindings shouldn't make http(s) requests for security
// reasons (e.g. to avoid malicious responses being able to run code in
// priviliged renderers). Fix these webui's to make requests through C++
// code instead.
virtual bool IsWebUIAllowedToMakeNetworkRequests(const url::Origin& origin);
// Returns whether a specified URL is handled by the embedder's internal
// protocol handlers.
virtual bool IsHandledURL(const GURL& url);
// Returns whether a custom handler is registered for the scheme of the
// specified URL scheme.
// https://html.spec.whatwg.org/multipage/system-state.html#custom-handlers
// TODO(crbug.com/40153317) Move custom protocol handler code to content.
virtual bool HasCustomSchemeHandler(content::BrowserContext* browser_context,
const std::string& scheme);
// Returns whether a browser context involves WebRequest API.
virtual bool HasWebRequestAPIProxy(BrowserContext* browser_context);
// Returns whether the given process is allowed to commit |url|. This is a
// more conservative check than IsSuitableHost, since it is used after a
// navigation has committed to ensure that the process did not exceed its
// authority.
// This is called on the UI thread.
virtual bool CanCommitURL(RenderProcessHost* process_host, const GURL& url);
// Allows the embedder to override parameters when navigating. Called for both
// opening new URLs and when transferring URLs across processes.
// If the initiator of the navigation is set, `source_process_site_url` is
// the site URL that the initiator's process is locked to. Generally the
// initiator is set on renderer-initiated navigations, but not on
// browser-initiated navigations.
virtual void OverrideNavigationParams(
std::optional<GURL> source_process_site_url,
ui::PageTransition* transition,
bool* is_renderer_initiated,
content::Referrer* referrer,
std::optional<url::Origin>* initiator_origin) {}
// Temporary hack to determine whether to skip OOPIFs on the new tab page.
// TODO(creis): Remove when https://crbug.com/566091 is fixed.
virtual bool ShouldStayInParentProcessForNTP(const GURL& url,
const GURL& parent_site_url);
// Returns whether a new view for a given |site_url| can be launched in a
// given |process_host|.
virtual bool IsSuitableHost(RenderProcessHost* process_host,
const GURL& site_url);
// Returns whether a new view for a new site instance can be added to a
// given |process_host|.
virtual bool MayReuseHost(RenderProcessHost* process_host);
// Returns a number of processes to ignore when deciding whether to reuse
// processes when over the process limit. This is useful for embedders that
// may want to partly delay when normal pages start reusing processes (e.g.,
// if another process type has a large number of processes). Defaults to 0.
// Must be less than or equal to the total number of RenderProcessHosts.
virtual size_t GetProcessCountToIgnoreForLimit();
// Returns the base permissions policy that is declared in an isolated app's
// Web App Manifest. The embedder might choose to return an std::nullopt in
// specific cases -- then the default non-isolated permissions policy will be
// applied.
virtual std::optional<blink::ParsedPermissionsPolicy>
GetPermissionsPolicyForIsolatedWebApp(WebContents* web_contents,
const url::Origin& app_origin);
// Returns whether a new process should be created or an existing one should
// be reused based on the URL we want to load. This should return false,
// unless there is a good reason otherwise.
virtual bool ShouldTryToUseExistingProcessHost(
BrowserContext* browser_context,
const GURL& url);
// Returns whether or not embedded frames (subframes or embedded main frames)
// of |outermost_main_frame| should try to aggressively reuse existing
// processes, even when below process limit. This gets called when navigating
// a subframe to a URL that requires a dedicated process and defaults to true,
// which minimizes the process count. The embedder can choose to override
// this if there is a reason to avoid the reuse.
virtual bool ShouldEmbeddedFramesTryToReuseExistingProcess(
RenderFrameHost* outermost_main_frame);
// Returns whether a process that no longer has active RenderFrameHosts (or
// other reasons to be kept alive) can safely exit. This should return true,
// unless the embedder cannot easily handle a process exit in non-live frames.
virtual bool ShouldAllowNoLongerUsedProcessToExit();
// Called when a SiteInstance is first associated with both a process and a
// site. SiteInstances may be created with or without a site, and they may
// get a process before or after their site is set. This call is only
// dispatched when both the site and the process are set. Note that this may
// get called after some navigations have already committed in the process,
// if those earlier navigations did not set a site (e.g., about:blank) but a
// subsequent navigation does.
virtual void SiteInstanceGotProcessAndSite(SiteInstance* site_instance) {}
// Returns true if for the navigation from |current_effective_url| to
// |destination_effective_url| in |site_instance|, a new SiteInstance and
// BrowsingInstance should be created (even if we are in a process model that
// doesn't usually swap.) This forces a process swap and severs script
// connections with existing tabs.
virtual bool ShouldSwapBrowsingInstancesForNavigation(
SiteInstance* site_instance,
const GURL& current_effective_url,
const GURL& destination_effective_url);
// Returns true if error page should be isolated in its own process.
virtual bool ShouldIsolateErrorPage(bool in_main_frame);
// Allows the embedder to programmatically provide some origins that should be
// opted into --isolate-origins mode of Site Isolation.
virtual std::vector<url::Origin> GetOriginsRequiringDedicatedProcess();
// Allows the embedder to programmatically control whether the
// --site-per-process mode of Site Isolation should be used. Note that
// returning true here will only take effect if ShouldDisableSiteIsolation()
// below returns false.
//
// Note that for correctness, the same value should be consistently returned.
// See also https://crbug.com/825369
virtual bool ShouldEnableStrictSiteIsolation();
// Allows the embedder to programmatically control whether Site Isolation
// should be disabled. Note that this takes precedence over
// ShouldEnableStrictSiteIsolation() if both return true.
// `site_isolation_mode` specifies the site isolation mode to check; this
// allows strict site isolation and partial site isolation to be disabled
// according to different policies (e.g., different memory thresholds) on
// Android.
//
// Note that for correctness, the same value should be consistently returned.
virtual bool ShouldDisableSiteIsolation(
SiteIsolationMode site_isolation_mode);
// Retrieves names of any additional site isolation modes from the embedder.
virtual std::vector<std::string> GetAdditionalSiteIsolationModes();
// Called when a new dynamic isolated origin was added in |context|, and the
// origin desires to be persisted across restarts, to give the embedder an
// opportunity to save this isolated origin to disk.
virtual void PersistIsolatedOrigin(
BrowserContext* context,
const url::Origin& origin,
ChildProcessSecurityPolicy::IsolatedOriginSource source) {}
// Returns true if the given URL needs be loaded with the "isolated
// application" isolation level. COOP/COEP headers must also be properly set
// in order to enable the application isolation level.
virtual bool ShouldUrlUseApplicationIsolationLevel(
BrowserContext* browser_context,
const GURL& url);
// Allows the embedder to enable access to Isolated Context Web APIs for the
// given |lock_url| -- the URL to which the renderer process is locked.
// See [IsolatedContext] IDL attribute for more details.
virtual bool IsIsolatedContextAllowedForUrl(BrowserContext* browser_context,
const GURL& lock_url);
// Check if the application running in the |render_frame_host| is allowed to
// automatically capture all screens by using the getAllScreensMedia API.
virtual void CheckGetAllScreensMediaAllowed(
content::RenderFrameHost* render_frame_host,
base::OnceCallback<void(bool)> callback);
// Allow the embedder to control the maximum renderer process count. Only
// applies if it is set to a non-zero value. Once this limit is exceeded,
// existing processes will be reused whenever possible, see
// `ShouldTryToUseExistingProcessHost()`.
virtual size_t GetMaxRendererProcessCountOverride();
// Indicates whether a file path should be accessible via file URL given a
// request from a browser context which lives within |profile_path|.
//
// On POSIX platforms, |absolute_path| is the path after resolving all
// symboling links. On Windows, if the file URL is a shortcut,
// IsFileAccessAllowed will be called twice: Once for the shortcut, which is
// treated like a redirect, and once for the destination path after following
// the shortcut, assuming access to the shortcut path was allowed.
virtual bool IsFileAccessAllowed(const base::FilePath& path,
const base::FilePath& absolute_path,
const base::FilePath& profile_path);
// Indicates whether to force the MIME sniffer to sniff file URLs for HTML.
// By default, disabled. May be called on either the UI or IO threads.
// See https://crbug.com/777737
virtual bool ForceSniffingFileUrlsForHtml();
// Allows the embedder to pass extra command line flags.
// switches::kProcessType will already be set at this point.
virtual void AppendExtraCommandLineSwitches(base::CommandLine* command_line,
int child_process_id) {}
// Returns a client GUID used for virus scanning.
virtual std::string GetApplicationClientGUIDForQuarantineCheck();
// Gets a callback which can connect to a Quarantine Service instance if
// available.
virtual download::QuarantineConnectionCallback
GetQuarantineConnectionCallback();
// Returns the locale used by the application.
// This is called on the UI and IO threads.
virtual std::string GetApplicationLocale();
// Returns a comma-separate list of language codes, in order of preference.
// The legacy "accept-language" header is not affected by this setting (see
// |ConfigureNetworkContextParams()| below).
// (Not called GetAcceptLanguages so it doesn't clash with win32).
virtual std::string GetAcceptLangs(BrowserContext* context);
// Returns the default favicon.
virtual gfx::ImageSkia GetDefaultFavicon();
// Returns the fully qualified path to the log file name, or an empty path.
// This function is used by the sandbox to allow write access to the log.
virtual base::FilePath GetLoggingFileName(
const base::CommandLine& command_line);
// Allows the embedder to control if a service worker is allowed at the given
// `scope` and can be accessed from `site_for_cookies` and `top_frame_origin`.
// `site_for_cookies` is used to determine whether the request is done in a
// third-party context. `top_frame_origin` is used to check if any
// content_setting affects this request. Only calls that are made within the
// context of a tab can provide a proper `top_frame_origin`, otherwise the
// scope of the service worker is used.
// This function is called whenever an attempt is made to create or access the
// persistent state of the registration, or to start the service worker.
//
// If non-empty, `script_url` is the script of the service worker that is
// attempted to be registered or started. If it's empty, an attempt is being
// made to access the registration but there is no specific service worker in
// the registration being acted on.
//
// This is called on the UI thread.
virtual AllowServiceWorkerResult AllowServiceWorker(
const GURL& scope,
const net::SiteForCookies& site_for_cookies,
const std::optional<url::Origin>& top_frame_origin,
const GURL& script_url,
BrowserContext* context);
// Returns true if the service worker associated with the given `scope` may be
// deleted. This can return false if the service worker is tied to another
// service that fundamentally should not be allowed to be removed (today, this
// is limited to extensions).
virtual bool MayDeleteServiceWorkerRegistration(
const GURL& scope,
BrowserContext* browser_context);
// Returns true if the content layer should attempt to update the service
// worker associated with the given `scope`. This can return false if the
// service worker is tied to another service that handles the update flow
// (today, this is limited to extensions).
virtual bool ShouldTryToUpdateServiceWorkerRegistration(
const GURL& scope,
BrowserContext* browser_context);
// Allows the embedder to enable process-wide blink features before starting a
// service worker. This is similar to
// `blink.mojom.CommitNavigationParams.force_enabled_origin_trials` but for
// RuntimeFeatures instead of Origin Trials.
//
// This method is only called when the process that will run the Service
// Worker is isolated. These features can be highly privileged, so the
// renderer process with such features enabled shouldn't be used for other
// sites.
virtual void UpdateEnabledBlinkRuntimeFeaturesInIsolatedWorker(
BrowserContext* context,
const GURL& script_url,
std::vector<std::string>& out_forced_enabled_runtime_features);
// Allow the embedder to control if a Shared Worker can be connected from a
// given tab.
// This is called on the UI thread.
virtual bool AllowSharedWorker(
const GURL& worker_url,
const net::SiteForCookies& site_for_cookies,
const std::optional<url::Origin>& top_frame_origin,
const std::string& name,
const blink::StorageKey& storage_key,
const blink::mojom::SharedWorkerSameSiteCookies same_site_cookies,
BrowserContext* context,
int render_process_id,
int render_frame_id);
// Allow the embedder to control if a page/worker with |scheme| URL can create
// a cross-origin shared workers.
virtual bool DoesSchemeAllowCrossOriginSharedWorker(
const std::string& scheme);
// Allows the embedder to control whether Signed HTTP Exchanges (SXG) can be
// loaded. This is called on the UI thread.
virtual bool AllowSignedExchange(BrowserContext* context);
// Allows the embedder to control whether Compression Dictionary Transport
// feature can be used. This is called on the UI thread.
virtual bool AllowCompressionDictionaryTransport(BrowserContext* context);
virtual bool IsDataSaverEnabled(BrowserContext* context);
// Updates the given prefs for Service Worker and Shared Worker. The prefs
// are to be sent to the renderer process when a worker is created. Note that
// We don't use this method for Dedicated Workers as they inherit preferences
// from their closest ancestor frame.
virtual void UpdateRendererPreferencesForWorker(
BrowserContext* browser_context,
blink::RendererPreferences* out_prefs);
// Requests access to |files| in order to be sent to |destination_url|.
// |continuation_callback| is called with a token that should be held until
// `open()` operation on the files is finished.
virtual void RequestFilesAccess(
const std::vector<base::FilePath>& files,
const GURL& destination_url,
base::OnceCallback<void(file_access::ScopedFileAccess)>
continuation_callback);
// Allow the embedder to control if access to file system by a shared worker
// is allowed.
virtual void AllowWorkerFileSystem(
const GURL& url,
BrowserContext* browser_context,
const std::vector<GlobalRenderFrameHostId>& render_frames,
base::OnceCallback<void(bool)> callback);
// Allow the embedder to control if access to IndexedDB by a shared worker
// is allowed.
virtual bool AllowWorkerIndexedDB(
const GURL& url,
BrowserContext* browser_context,
const std::vector<GlobalRenderFrameHostId>& render_frames);
// Allow the embedder to control if access to Web Locks by a shared worker
// is allowed.
virtual bool AllowWorkerWebLocks(
const GURL& url,
BrowserContext* browser_context,
const std::vector<GlobalRenderFrameHostId>& render_frames);
// Allow the embedder to control if access to CacheStorage by a shared worker
// is allowed.
virtual bool AllowWorkerCacheStorage(
const GURL& url,
BrowserContext* browser_context,
const std::vector<GlobalRenderFrameHostId>& render_frames);
// Allow the embedder to control whether we can use Web Bluetooth.
// TODO(crbug.com/40458188): Replace this with a use of the permission system.
enum class AllowWebBluetoothResult {
ALLOW,
BLOCK_POLICY,
BLOCK_GLOBALLY_DISABLED,
};
virtual AllowWebBluetoothResult AllowWebBluetooth(
content::BrowserContext* browser_context,
const url::Origin& requesting_origin,
const url::Origin& embedding_origin);
// Returns a blocklist of UUIDs that have restrictions when accessed
// via Web Bluetooth. Parsed by BluetoothBlocklist::Add().
//
// The blocklist string must be a comma-separated list of UUID:exclusion
// pairs. The pairs may be separated by whitespace. Pair components are
// colon-separated and must not have whitespace around the colon.
//
// UUIDs are a string that BluetoothUUID can parse (See BluetoothUUID
// constructor comment). Exclusion values are a single lower case character
// string "e", "r", or "w" for EXCLUDE, EXCLUDE_READS, or EXCLUDE_WRITES.
//
// Example:
// "1812:e, 00001800-0000-1000-8000-00805f9b34fb:w, ignored:1, alsoignored."
virtual std::string GetWebBluetoothBlocklist();
using InterestGroupApiOperation = content::InterestGroupApiOperation;
// Returns whether `api_origin` on `top_frame_origin` can perform `operation`
// within the interest group API.
//
// If `render_frame_host` is null (e.g., due to the initiator frame being
// destroyed for a keep-alive worklet), certain operations like console error
// will be skipped. However, the core permission check will still be
// performed.
virtual bool IsInterestGroupAPIAllowed(
content::BrowserContext* browser_context,
content::RenderFrameHost* render_frame_host,
InterestGroupApiOperation operation,
const url::Origin& top_frame_origin,
const url::Origin& api_origin);
// Returns whether |destination_origin| can receive beacons sent through
// window.fence.reportEvent() or automatic beacons. The reporting destination
// is required to be attested for its invoking API.
virtual bool IsPrivacySandboxReportingDestinationAttested(
content::BrowserContext* browser_context,
const url::Origin& destination_origin,
content::PrivacySandboxInvokingAPI invoking_api);
// Called when a Fledge auction is complete (without being aborted). If there
// is a winner, `winner_data_key` should be non-null. `is_server_auction`
// should be true if any component of the auction was a B&A server auction.
// `is_on_device_auction` should be true if any component of the auction was
// on-device. If the auction contained both B&A server and on-device auctions,
// both `is_server_auction` and `is_on_device_auction` should be true.
virtual void OnAuctionComplete(
RenderFrameHost* render_frame_host,
std::optional<content::InterestGroupManager::InterestGroupDataKey>
winner_data_key,
bool is_server_auction,
bool is_on_device_auction,
AuctionResult result);
// These values are persisted to logs. Entries should not be renumbered and
// numeric values should never be reused.
enum class AttributionReportingOsApiState {
kDisabled = 0,
kEnabled = 1,
kMaxValue = kEnabled,
};
// Allows the embedder to control the type of attribution reporting allowed.
// Web, Os, both or none
virtual network::mojom::AttributionSupport GetAttributionSupport(
AttributionReportingOsApiState state,
bool client_os_disabled);
enum class AttributionReportingOperation {
kSource,
kTrigger,
kReport,
kSourceVerboseDebugReport,
kTriggerVerboseDebugReport,
kOsSource,
kOsTrigger,
kOsSourceVerboseDebugReport,
kOsTriggerVerboseDebugReport,
kSourceTransitionalDebugReporting,
kTriggerTransitionalDebugReporting,
kOsSourceTransitionalDebugReporting,
kOsTriggerTransitionalDebugReporting,
kSourceAggregatableDebugReport,
kTriggerAggregatableDebugReport,
kAny,
};
// Allows the embedder to control if Attribution Reporting API operations can
// happen in a given context. Origins must be provided for a given operation
// as follows:
// - `kSource`, `kOsSource`, `kSourceTransitionalDebugReporting`,
// `kSourceVerboseDebugReport`, `kSourceAggregatableDebugReport` and
// `kOsSourceTransitionalDebugReporting` must provide a non-null
// `source_origin` and `reporting_origin`
// - `kTrigger`, `kOsTrigger`, `kTriggerTransitionalDebugReporting`,
// `kTriggerVerboseDebugReport`, `kTriggerAggregatableDebugReport` and
// `kOsTriggerTransitionalDebugReporting` must provide a non-null
// `destination_origin` and `reporting_origin`
// - `kReport` must provide all non-null origins
// - `kAny` may provide all null origins. It checks whether conversion
// measurement is allowed anywhere in `browser_context`, returning false if
// Attribution Reporting is not allowed by default on any origin.
// `can_bypass` is an out parameter that is used for transitional debug
// reporting to indicate whether the result can be bypassed if disallowed.
// `can_bypass` is required to be non-null for
// `kSourceTransitionalDebugReporting`, `kOsSourceTransitionalDebugReporting`,
// `kTriggerTransitionalDebugReporting` and
// `kOsTriggerTransitionalDebugReporting`.
//
// TODO(crbug.com/40941634): Clean up `can_bypass` after the cookie
// deprecation experiment.
virtual bool IsAttributionReportingOperationAllowed(
content::BrowserContext* browser_context,
AttributionReportingOperation operation,
content::RenderFrameHost* rfh,
const url::Origin* source_origin,
const url::Origin* destination_origin,
const url::Origin* reporting_origin,
bool* can_bypass);
// Specifies whether an OS attribution event should register
// against the top level origin (web) or the app (OS) or if
// OS attribution is disabled.
enum class AttributionReportingOsRegistrar {
kWeb,
kOs,
kDisabled,
};
// Attribution reporting generates source and trigger events.
// An embedder can specify whether OS attribution source/trigger events
// should register against the top level origin (web) or the app (OS) or if
// OS attribution is disabled. The behaviour can be the same or different
// for source and trigger events so this struct is used to hold the behaviour
// for the different event types.
struct AttributionReportingOsRegistrars {
AttributionReportingOsRegistrar source_registrar;
AttributionReportingOsRegistrar trigger_registrar;
auto operator<=>(const AttributionReportingOsRegistrars&) const = default;
};
// Allows the embedder to control if OS attribution source/trigger events
// should register against the top level origin (web) or the app (OS) or if
// OS attribution is disabled.
virtual AttributionReportingOsRegistrars GetAttributionReportingOsRegistrars(
WebContents* web_contents);
// Allows the embedder to control if Attribution Reporting API is allowed in a
// given context. This method checks the API-level permission.
// `IsAttributionReportingOperationAllowed()` should be called to check the
// operation-level permission.
virtual bool IsAttributionReportingAllowedForContext(
content::BrowserContext* browser_context,
content::RenderFrameHost* rfh,
const url::Origin& context_origin,
const url::Origin& reporting_origin);
// Allows the embedder to control if Shared Storage API operations can happen
// in a given context.
//
// If non-null, the embedder can use `out_debug_message` to relay further
// details about how the returned boolean result was obtained.
//
// Note that `rfh` can be nullptr.
//
// If non-null, the embedder can use `out_block_is_site_setting_specific` to
// relay whether or not a failure to be allowed is due to a site-specific
// reason.
virtual bool IsSharedStorageAllowed(content::BrowserContext* browser_context,
content::RenderFrameHost* rfh,
const url::Origin& top_frame_origin,
const url::Origin& accessing_origin,
std::string* out_debug_message,
bool* out_block_is_site_setting_specific);
// Allows the embedder to control if Shared Storage API `selectURL()` can
// happen in a given context.
//
// If non-null, the embedder can use `out_debug_message` to relay further
// details about how the returned boolean result was obtained.
//
// If non-null, the embedder can use `out_block_is_site_setting_specific` to
// relay whether or not a failure to be allowed is due to a site-specific
// reason.
virtual bool IsSharedStorageSelectURLAllowed(
content::BrowserContext* browser_context,
const url::Origin& top_frame_origin,
const url::Origin& accessing_origin,
std::string* out_debug_message,
bool* out_block_is_site_setting_specific);
// Allows the embedder to control if fenced frame gated Shared Storage API
// operations can happen in a given context.
virtual bool IsFencedFramesLocalUnpartitionedDataAccessAllowed(
content::BrowserContext* browser_context,
content::RenderFrameHost* rfh,
const url::Origin& top_frame_origin,
const url::Origin& accessing_origin);
// Allows the embedder to control if Private Aggregation API operations can
// happen in a given context.
//
// If non-null, the embedder can use `out_block_is_site_setting_specific` to
// relay whether or not a failure to be allowed is due to a site-specific
// reason.
virtual bool IsPrivateAggregationAllowed(
content::BrowserContext* browser_context,
const url::Origin& top_frame_origin,
const url::Origin& reporting_origin,
bool* out_block_is_site_setting_specific);
// Allows the embedder to control if Private Aggregation API debug mode
// operations can happen in a given context.
virtual bool IsPrivateAggregationDebugModeAllowed(
content::BrowserContext* browser_context,
const url::Origin& top_frame_origin,
const url::Origin& reporting_origin);
// Returns whether cookie deprecation label should be allowed for the
// profile. Defaults to false to ensure no traffic label is sent by default.
virtual bool IsCookieDeprecationLabelAllowed(
content::BrowserContext* browser_context);
// Returns whether cookie deprecation label should be allowed for the
// profile in a given context. Defaults to false to ensure no traffic label
// is sent by default.
virtual bool IsCookieDeprecationLabelAllowedForContext(
content::BrowserContext* browser_context,
const url::Origin& top_frame_origin,
const url::Origin& context_origin);
// Returns whether cookies should be allowed for requests to `url`, fetched
// from contexts whose storage is keyed on `storage_key`.
// The `web_contents` parameter should be `nullptr` for requests coming from
// ServiceWorkers, otherwise set to the WebContents instance that is making
// the request. The `browser_context` parameter must not be `nullptr`.
virtual bool IsFullCookieAccessAllowed(
content::BrowserContext* browser_context,
content::WebContents* web_contents,
const GURL& url,
const blink::StorageKey& storage_key);
// Temporarily allow `accessing_site` to access cookies when embedded on
// `top_frame_site` when third-party cookies are otherwise blocked. After
// `ttl` has passed, the access will be revoked. If `ignore_schemes` is true,
// then cookie access will be allowed for the sites for all schemes.
//
// Note that this is not a query to check whether cookie access is permitted.
// It is a request that such access *be* permitted; i.e., until `ttl` expires,
// `IsFullCookieAccessAllowed()` should return true when called with an URL
// belonging to `accessing_site` and a storage key belonging to
// `top_frame_site`.
//
// This method will only be called by cookie access heuristics, described at
// https://github.com/amaliev/3pcd-exemption-heuristics/blob/main/explainer.md
// "DueToHeuristic" is in the name so that embedders can optionally treat
// these grants differently from grants due to other causes, if other types
// are added in the future.
//
// This should only be called on the UI thread.
//
// TODO: crbug.com/40883201 - this is temporarily only called by code in
// //chrome. Once the cookie access heuristics move to //content, it will be
// called by code in //content.
virtual void GrantCookieAccessDueToHeuristic(
content::BrowserContext* browser_context,
const net::SchemefulSite& top_frame_site,
const net::SchemefulSite& accessing_site,
base::TimeDelta ttl,
bool ignore_schemes);
#if BUILDFLAG(IS_CHROMEOS)
// Notification that a trust anchor was used by the given user.
virtual void OnTrustAnchorUsed(BrowserContext* browser_context) {}
#endif
// Allows the embedder to implement policy for whether an SCT auditing report
// should be sent.
virtual bool CanSendSCTAuditingReport(BrowserContext* browser_context);
// Notification that a new SCT auditing report has been sent.
virtual void OnNewSCTAuditingReportSent(BrowserContext* browser_context) {}
// Allows the embedder to override the LocationProvider implementation.
// Return nullptr to indicate the default one for the platform should be
// created. This is used by Qt, see
// https://bugs.chromium.org/p/chromium/issues/detail?id=725057#c7
virtual std::unique_ptr<device::LocationProvider>
OverrideSystemLocationProvider();
// Returns a SharedURLLoaderFactory attached to the system network context.
// Must be called on the UI thread. The default implementation returns
// nullptr.
virtual scoped_refptr<network::SharedURLLoaderFactory>
GetSystemSharedURLLoaderFactory();
// Returns the system network context. This shouldn't be used to create a
// URLLoaderFactory, instead use GetSystemSharedURLLoaderFactory(). Must be
// called on the UI thread. The default implementation returns nullptr.
virtual network::mojom::NetworkContext* GetSystemNetworkContext();
// Allows an embedder to provide a Google API Key to use for network
// geolocation queries.
// * May be called from any thread.
// * Default implementation returns empty string, meaning send no API key.
virtual std::string GetGeolocationApiKey();
// Returns the global BrowserProcessPlatformParts'
// GeolocationSystemPermissionManager on supported operating systems and
// returns nullptr otherwise. For tests this should return a
// FakeGeolocationSystemPermissionManager with the
// LocationSystemPermissionStatus set to allow.
virtual device::GeolocationSystemPermissionManager*
GetGeolocationSystemPermissionManager();
#if BUILDFLAG(IS_ANDROID)
// Allows an embedder to decide whether to use the GmsCoreLocationProvider.
virtual bool ShouldUseGmsCoreGeolocationProvider();
#endif
// Allows the embedder to provide a storage partition configuration for a
// site. A storage partition configuration includes a domain of the embedder's
// choice, an optional name within that domain, and whether the partition is
// in-memory only.
virtual StoragePartitionConfig GetStoragePartitionConfigForSite(
BrowserContext* browser_context,
const GURL& site);
// Allows the embedder to provide settings that determine if generated code
// can be cached and the amount of disk space used for caching generated code.
virtual GeneratedCodeCacheSettings GetGeneratedCodeCacheSettings(
BrowserContext* context);
// Gets the metrics appropriate hostname for a given WebUI URL for code cache
// metrics. Returns an empty string if no relevant mapping has been defined.
// Called from the GeneratedCodeCache thread.
virtual std::string GetWebUIHostnameForCodeCacheMetrics(
const GURL& webui_url) const;
// Informs the embedder that a certificate error has occurred. If
// |overridable| is true and if |strict_enforcement| is false, the user
// can ignore the error and continue. The embedder can call the callback
// asynchronously.
virtual void AllowCertificateError(
WebContents* web_contents,
int cert_error,
const net::SSLInfo& ssl_info,
const GURL& request_url,
bool is_primary_main_frame_request,
bool strict_enforcement,
base::OnceCallback<void(CertificateRequestResultType)> callback);
// Returns true if all requests with certificate errors should be blocked
// for a given |main_frame_url|, regardless of any other security settings.
virtual bool ShouldDenyRequestOnCertificateError(const GURL main_frame_url);
// Selects a SSL client certificate and returns it to the |delegate|. Note:
// |delegate| may be called synchronously or asynchronously.
//
// Returns a callback that cancels the UI element corresponding to this
// request. The callback should expect to be invoked on the UI thread. The
// callback may be null. The callback is not required to be invoked.
// `web_contents` may be null if the requestor was called from something
// without an associated WebContents, like a service worker. In this case, UI
// should not be shown, but a certificate may still be provided (such as when
// the certificate is auto-selected by policy). `process_id` corresponds to
// the ID of the renderer process initiating the request.
virtual base::OnceClosure SelectClientCertificate(
BrowserContext* browser_context,
int process_id,
WebContents* web_contents,
net::SSLCertRequestInfo* cert_request_info,
net::ClientCertIdentityList client_certs,
std::unique_ptr<ClientCertificateDelegate> delegate);
// Returns a class to get notifications about media event. The embedder can
// return nullptr if they're not interested.
virtual MediaObserver* GetMediaObserver();
// Returns a class to observe usage of features. The embedder can return
// nullptr if they're not interested. The returned FeatureObserverClient must
// stay alive until BrowserMainParts::PostDestroyThreads() is called and
// threads are destroyed. Its interface will always be called from the same
// sequence.
virtual FeatureObserverClient* GetFeatureObserverClient();
// Returns true if the given page is allowed to open a window of the given
// type. If true is returned, |no_javascript_access| will indicate whether
// the window that is created should be scriptable/in the same process.
// This is called on the UI thread.
virtual bool CanCreateWindow(
RenderFrameHost* opener,
const GURL& opener_url,
const GURL& opener_top_level_frame_url,
const url::Origin& source_origin,
content::mojom::WindowContainerType container_type,
const GURL& target_url,
const Referrer& referrer,
const std::string& frame_name,
WindowOpenDisposition disposition,
const blink::mojom::WindowFeatures& features,
bool user_gesture,
bool opener_suppressed,
bool* no_javascript_access);
// Allows the embedder to return a delegate for the SpeechRecognitionManager.
// The delegate will be owned by the manager. It's valid to return nullptr.
virtual SpeechRecognitionManagerDelegate*
CreateSpeechRecognitionManagerDelegate();
#if BUILDFLAG(IS_CHROMEOS_ASH)
// Allows the embedder to return a delegate for the TtsController.
virtual TtsControllerDelegate* GetTtsControllerDelegate();
#endif
// Applies policy-dictated changes to the manifest that was loaded from the
// provided render_frame_host.
virtual void MaybeOverrideManifest(RenderFrameHost* render_frame_host,
blink::mojom::ManifestPtr& manifest) {}
// Allows the embedder to return a TTS platform implementation.
virtual TtsPlatform* GetTtsPlatform();
#if !BUILDFLAG(IS_ANDROID)
// Allows the embedder to return a DirectSocketsDelegate
// implementation.
virtual DirectSocketsDelegate* GetDirectSocketsDelegate();
#endif
// Called by WebContents to override the WebKit preferences that are used by
// the renderer. The content layer will add its own settings, and then it's up
// to the embedder to update it if it wants.
virtual void OverrideWebkitPrefs(WebContents* web_contents,
blink::web_pref::WebPreferences* prefs) {}
// Similar to OverrideWebkitPrefs, but is only called after navigations. Some
// attributes in WebPreferences might need its value updated after navigation,
// and this method will give the opportunity for embedder to update them.
// Returns true if some values |prefs| changed due to embedder override.
virtual bool OverrideWebPreferencesAfterNavigation(
WebContents* web_contents,
blink::web_pref::WebPreferences* prefs);
// Notifies that BrowserURLHandler has been created, so that the embedder can
// optionally add their own handlers.
virtual void BrowserURLHandlerCreated(BrowserURLHandler* handler) {}
// Returns the default download directory.
// This can be called on any thread.
virtual base::FilePath GetDefaultDownloadDirectory();
// Returns the default filename used in downloads when we have no idea what
// else we should do with the file.
virtual std::string GetDefaultDownloadName();
// Returns the path to the browser shader disk cache root.
virtual base::FilePath GetShaderDiskCacheDirectory();
// Returns the path to the shader disk cache root for shaders generated by
// skia.
virtual base::FilePath GetGrShaderDiskCacheDirectory();
// Returns the path to the shader disk cache root for shaders generated by
// graphite dawn.
virtual base::FilePath GetGraphiteDawnDiskCacheDirectory();
// Returns the path to the net log default directory.
virtual base::FilePath GetNetLogDefaultDirectory();
// Returns the path to the First-Party Sets directory.
virtual base::FilePath GetFirstPartySetsDirectory();
// Returns the path to Local Traces directory.
virtual std::optional<base::FilePath> GetLocalTracesDirectory();
// Notification that a pepper plugin has just been spawned. This allows the
// embedder to add filters onto the host to implement interfaces.
// This is called on the IO thread.
virtual void DidCreatePpapiPlugin(BrowserPpapiHost* browser_host) {}
// Gets the host for an external out-of-process plugin.
virtual BrowserPpapiHost* GetExternalBrowserPpapiHost(int plugin_child_id);
// Returns true if the socket operation specified by |params| is allowed from
// the given |browser_context| and |url|. If |params| is nullptr, this method
// checks the basic "socket" permission, which is for those operations that
// don't require a specific socket permission rule.
// |private_api| indicates whether this permission check is for the private
// Pepper socket API or the public one.
virtual bool AllowPepperSocketAPI(BrowserContext* browser_context,
const GURL& url,
bool private_api,
const SocketPermissionRequest* params);
// Returns true if the "vpnProvider" permission is allowed from the given
// |browser_context| and |url|.
virtual bool IsPepperVpnProviderAPIAllowed(BrowserContext* browser_context,
const GURL& url);
// Creates a new VpnServiceProxy. The caller owns the returned value. It's
// valid to return nullptr.
virtual std::unique_ptr<VpnServiceProxy> GetVpnServiceProxy(
BrowserContext* browser_context);
// Returns an implementation of a file selecition policy. Can return null.
virtual std::unique_ptr<ui::SelectFilePolicy> CreateSelectFilePolicy(
WebContents* web_contents);
// Returns additional allowed scheme set which can access files in
// FileSystem API.
virtual void GetAdditionalAllowedSchemesForFileSystem(
std::vector<std::string>* additional_schemes) {}
// |schemes| is a return value parameter that gets an allowlist of schemes
// that should bypass the Is Privileged Context check.
// See http://www.w3.org/TR/powerful-features/#settings-privileged
virtual void GetSchemesBypassingSecureContextCheckAllowlist(
std::set<std::string>* schemes) {}
// Returns auto mount handlers for URL requests for FileSystem APIs.
virtual void GetURLRequestAutoMountHandlers(
std::vector<storage::URLRequestAutoMountHandler>* handlers) {}
// Returns additional file system backends for FileSystem API.
// |browser_context| is needed in the additional FileSystemBackends.
// It has mount points to create objects returned by additional
// FileSystemBackends, and SpecialStoragePolicy for permission granting.
virtual void GetAdditionalFileSystemBackends(
BrowserContext* browser_context,
const base::FilePath& storage_partition_path,
std::vector<std::unique_ptr<storage::FileSystemBackend>>*
additional_backends) {}
// Creates a new DevToolsManagerDelegate. It's valid to return nullptr.
virtual std::unique_ptr<content::DevToolsManagerDelegate>
CreateDevToolsManagerDelegate();
// Stores the new expiration time up until which events related to |service|
// can still be logged. |service| is the int value of the
// DevToolsBackgroundService enum. |expiration_time| can be null, denoting
// that nothing should be recorded any more.
virtual void UpdateDevToolsBackgroundServiceExpiration(
BrowserContext* browser_context,
int service,
base::Time expiration_time);
// Returns a mapping from a background service to the time up until which
// recording the background service's events is still allowed.
virtual base::flat_map<int, base::Time>
GetDevToolsBackgroundServiceExpirations(BrowserContext* browser_context);
// Returns the delay to create a new spare renderer after the previous spare
// renderer is taken by `site_url`. This is used to avoid potential resource
// contention.
// If `delay` is nullopt, the spare renderer will be created immediately.
virtual std::optional<base::TimeDelta> GetSpareRendererDelayForSiteURL(
const GURL& site_url);
// Creates a new TracingDelegate. The caller owns the returned value.
// It's valid to return nullptr.
virtual std::unique_ptr<TracingDelegate> CreateTracingDelegate();
// Whether system-wide performance trace collection using the external system
// tracing service is enabled.
virtual bool IsSystemWideTracingEnabled();
// Returns true if plugin referred to by the url can use
// pp::FileIO::RequestOSFileHandle.
virtual bool IsPluginAllowedToCallRequestOSFileHandle(
BrowserContext* browser_context,
const GURL& url);
// Returns true if dev channel APIs are available for plugins.
virtual bool IsPluginAllowedToUseDevChannelAPIs(
BrowserContext* browser_context,
const GURL& url);
// Allows to register browser interfaces exposed through the
// RenderProcessHost. Note that interface factory callbacks added to
// |registry| will by default be run immediately on the IO thread, unless a
// task runner is provided.
virtual void ExposeInterfacesToRenderer(
service_manager::BinderRegistry* registry,
blink::AssociatedInterfaceRegistry* associated_registry,
RenderProcessHost* render_process_host) {}
// Called to bind additional frame-bound media interfaces to the renderer.
virtual void BindMediaServiceReceiver(RenderFrameHost* render_frame_host,
mojo::GenericPendingReceiver receiver) {
}
// The Media Service can run in many different types of configurations
// (typically in the GPU process or its own isolated process), but some
// clients want an additional dedicated instance to use for specific
// operations (e.g. for rendering protected content). Clients should override
// this to create such an instance, and return a bound Remote to control it.
// See MediaInterfaceProxy and MediaInterfaceFactoryHolder for usage.
virtual mojo::Remote<media::mojom::MediaService> RunSecondaryMediaService();
// Allows to register browser interfaces exposed through the RenderFrameHost.
// This mechanism will replace interface registries and binders used for
// handling InterfaceProvider's GetInterface() calls (see crbug.com/718652).
virtual void RegisterBrowserInterfaceBindersForFrame(
RenderFrameHost* render_frame_host,
mojo::BinderMapWithContext<RenderFrameHost*>* map) {}
// Allows the embedder to control when Mojo interface binders are run for a
// frame that is in a managed mode, such as prerendering and preview mode.
//
// Prerender2 limits inactivated pages' capabilities by controlling when to
// bind Mojo interfaces. See content/browser/preloading/prerender/README.md
// for more about capability control.
//
// Preview mode follows the same limits that Prerender2 defines, and the page
// behaves as a prerendered page in Blink. But as the preview page is visible
// to users, we relax the restriction a little to permit rendering related
// operations.
//
// The embedder can add entries to `policy_map` for interfaces that it
// registers in `RegisterBrowserInterfaceBindersForFrame()` and
// `RegisterAssociatedInterfaceBindersForRenderFrameHost ()`. It should not
// change or remove existing entries.
//
// This function is called at most once, when the first RenderFrameHost is
// created for prerendering a page that is same-origin to the page that
// triggered the prerender.
virtual void RegisterMojoBinderPoliciesForSameOriginPrerendering(
MojoBinderPolicyMap& policy_map) {}
virtual void RegisterMojoBinderPoliciesForPreview(
MojoBinderPolicyMap& policy_map) {}
// Allows to register browser interfaces which are exposed to a service worker
// execution context.
virtual void RegisterBrowserInterfaceBindersForServiceWorker(
BrowserContext* browser_context,
const ServiceWorkerVersionBaseInfo& service_worker_version_info,
mojo::BinderMapWithContext<const ServiceWorkerVersionBaseInfo&>* map) {}
// Allows the embedder to register browser channel-associated interfaces that
// are exposed through the ServiceWorker. `service_worker_version_info`
// contains the information to uniquely identify the service worker instance.
// `associated_registry` contains interfaces provided by the browser.
virtual void RegisterAssociatedInterfaceBindersForServiceWorker(
const ServiceWorkerVersionBaseInfo& service_worker_version_info,
blink::AssociatedInterfaceRegistry& associated_registry) {}
// Allows the embedder to register per-WebUI interface brokers that are used
// for handling Mojo.bindInterface in WebUI JavaScript.
//
// The exposed interfaces are grouped by the WebUI controller type. For any
// given WebUI page, only the interfaces corresponding to its controller type
// will be exposed.
virtual void RegisterWebUIInterfaceBrokers(
WebUIBrowserInterfaceBrokerRegistry& registry) {}
// Allows the embedder to register browser channel-associated interfaces that
// are exposed through the RenderFrameHost.
virtual void RegisterAssociatedInterfaceBindersForRenderFrameHost(
RenderFrameHost& render_frame_host,
blink::AssociatedInterfaceRegistry& associated_registry);
// Handles an unhandled incoming interface binding request from the GPU
// process. Called on the IO thread.
virtual void BindGpuHostReceiver(mojo::GenericPendingReceiver receiver) {}
// Handles an unhandled incoming interface binding request from a Utility
// process. Called on the IO thread.
virtual void BindUtilityHostReceiver(mojo::GenericPendingReceiver receiver) {}
// Called on the main thread to handle an unhandled interface receiver binding
// request from a render process. See |RenderThread::BindHostReceiver()|.
virtual void BindHostReceiverForRenderer(
RenderProcessHost* render_process_host,
mojo::GenericPendingReceiver receiver) {}
// Allows an embedder to provide its own ControllerPresentationServiceDelegate
// implementation. Returns nullptr if unavailable.
virtual ControllerPresentationServiceDelegate*
GetControllerPresentationServiceDelegate(WebContents* web_contents);
// Allows an embedder to provide its own ReceiverPresentationServiceDelegate
// implementation. Returns nullptr if unavailable. Only WebContents created
// for offscreen presentations should be passed to this API. The WebContents
// must belong to an incognito profile.
virtual ReceiverPresentationServiceDelegate*
GetReceiverPresentationServiceDelegate(WebContents* web_contents);
// Add or remove an observer for presentations associated with `web_contents`.
virtual void AddPresentationObserver(PresentationObserver* observer,
WebContents* web_contents);
virtual void RemovePresentationObserver(PresentationObserver* observer,
WebContents* web_contents);
// Add or remove an observer for privacy sandbox attestations. Returns true if
// privacy sandbox attestations have ever been loaded, or if attestations are
// not enforced.
virtual bool AddPrivacySandboxAttestationsObserver(
PrivacySandboxAttestationsObserver* observer);
virtual void RemovePrivacySandboxAttestationsObserver(
PrivacySandboxAttestationsObserver* observer);
// Allows programmatic opening of a new tab/window without going through
// another WebContents. For example, from a Worker. |site_instance|
// describes the context initiating the navigation. |callback| will be
// invoked with the appropriate WebContents* when available.
virtual void OpenURL(SiteInstance* site_instance,
const OpenURLParams& params,
base::OnceCallback<void(WebContents*)> callback);
// Allows the embedder to register one or more NavigationThrottles for the
// navigation indicated by |navigation_handle|. A NavigationThrottle is used
// to control the flow of a navigation on the UI thread. The embedder is
// guaranteed that the throttles will be executed in the order they were
// provided. NavigationThrottles are run only for document loading
// navigations; they are specifically not run for page activating navigations
// such as prerender activation and back-forward cache restores or for
// navigations that don't use a URLLoader like same-document navigations.
virtual std::vector<std::unique_ptr<NavigationThrottle>>
CreateThrottlesForNavigation(NavigationHandle* navigation_handle);
// Allows the embedder to register one or more CommitDeferringConditions for
// the navigation indicated by |navigation_handle|. A
// CommitDeferringCondition is used to delay committing a navigation until an
// embedder-defined condition is met. Similar to NavigationThrottles,
// CommitDeferringConditions are not used in navigations that don't use a
// URLLoader, like same-document navigations. Unlike NavigationThrottles,
// CommitDeferringConditions are also run on page activating navigations such
// as prerender activation and back-forward cache restores.
virtual std::vector<std::unique_ptr<CommitDeferringCondition>>
CreateCommitDeferringConditionsForNavigation(
NavigationHandle* navigation_handle,
content::CommitDeferringCondition::NavigationType type);
// Called at the start of the navigation to get opaque data the embedder
// wants to see passed to the corresponding URLRequest on the IO thread.
virtual std::unique_ptr<NavigationUIData> GetNavigationUIData(
NavigationHandle* navigation_handle);
// Allows the embedder to provide its own AudioManager implementation.
// If this function returns nullptr, a default platform implementation
// will be used.
virtual std::unique_ptr<media::AudioManager> CreateAudioManager(
media::AudioLogFactory* audio_log_factory);
// The ScreenEnumerator object can be used to query all attached screens
// at once. This function should be called on the IO thread.
virtual std::unique_ptr<media::ScreenEnumerator> CreateScreenEnumerator()
const;
// Returns true if (and only if) CreateAudioManager() is implemented and
// returns a non-null value.
virtual bool OverridesAudioManager();
// Returns true if the system audio echo cancellation shall be enforced.
virtual bool EnforceSystemAudioEchoCancellation();
// Populates |mappings| with all files that need to be mapped before launching
// a child process.
#if (BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_MAC)) || BUILDFLAG(IS_FUCHSIA)
virtual void GetAdditionalMappedFilesForChildProcess(
const base::CommandLine& command_line,
int child_process_id,
content::PosixFileDescriptorInfo* mappings) {}
#endif // BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_MAC) || BUILDFLAG(IS_FUCHSIA)
#if BUILDFLAG(IS_CHROMEOS_LACROS)
// Populates |mappings| with all files that need to be mapped before launching
// a Zygote process.
virtual void GetAdditionalMappedFilesForZygote(
base::CommandLine* command_line,
content::PosixFileDescriptorInfo* mappings) {}
#endif // BUILDFLAG(IS_CHROMEOS_LACROS)
#if BUILDFLAG(IS_WIN)
// Defines flags that can be passed to PreSpawnChild.
enum ChildSpawnFlags {
kChildSpawnFlagNone = 0,
kChildSpawnFlagRendererCodeIntegrity = 1 << 0,
};
// Defines flags that can be passed to GetAppContainerSidForSandboxType.
enum AppContainerFlags {
kAppContainerFlagNone = 0,
kAppContainerFlagDisableAppContainer = 1 << 0,
};
// This may be called on the PROCESS_LAUNCHER thread before the child process
// configuration is set. It gives the embedder a chance to modify the sandbox
// configuration. Returns false if configuration is invalid and the child
// should not spawn. Only use this for embedder-specific policies, since the
// bulk of sandbox policies should go inside the relevant
// SandboxedProcessLauncherDelegate.
virtual bool PreSpawnChild(sandbox::TargetConfig* config,
sandbox::mojom::Sandbox sandbox_type,
ChildSpawnFlags flags);
// This may be called on the PROCESS_LAUNCHER thread before the child process
// is launched. It gives the embedder a chance to indicate that a process will
// not be compatible with Hardware-enforced Stack Protection (CET).
// |utility_sub_type| should match that provided on the command line to the
// child process. Only use this for embedder-specific processes, and prefer to
// key off Sandbox in the relevant SandboxedProcessLauncherDelegate.
virtual bool IsUtilityCetCompatible(const std::string& utility_sub_type);
// Returns the AppContainer SID for the specified sandboxed process type, or
// empty string if this sandboxed process type does not support living inside
// an AppContainer. Called on PROCESS_LAUNCHER thread.
// `flags` can signal to the embedder any special behavior that should happen
// for the `sandbox_type`.
virtual std::wstring GetAppContainerSidForSandboxType(
sandbox::mojom::Sandbox sandbox_type,
AppContainerFlags flags);
// Returns true if App Container should be disabled for the specified
// `sandbox_type`. This is called on the UI thread.
virtual bool IsAppContainerDisabled(sandbox::mojom::Sandbox sandbox_type);
// Returns the LPAC capability name to use for file data that the network
// service needs to access to when running within LPAC sandbox. Embedders
// should override this with their own unique name to ensure security of the
// network service data.
virtual std::wstring GetLPACCapabilityNameForNetworkService();
// Returns whether renderer code integrity is enabled.
// This is called on the UI thread.
virtual bool IsRendererCodeIntegrityEnabled();
// Performs a fast and orderly shutdown of the browser. If present,
// `control_type` is a CTRL_* value from a Windows console control handler;
// see https://learn.microsoft.com/en-us/windows/console/handlerroutine.
virtual void SessionEnding(std::optional<DWORD> control_type) {}
// Returns true if the audio process should run with high priority. false
// otherwise.
virtual bool ShouldEnableAudioProcessHighPriority();
// Returns true if a site_url should launch a renderer that resolves
// fonts via the SkiaFontManager.
virtual bool ShouldUseSkiaFontManager(const GURL& site_url);
#endif
// Binds a new media remoter service to |receiver|, if supported by the
// embedder, for the |source| that lives in the render frame represented
// by |render_frame_host|. This may be called multiple times if there is more
// than one source candidate in the same render frame.
virtual void CreateMediaRemoter(
RenderFrameHost* render_frame_host,
mojo::PendingRemote<media::mojom::RemotingSource> source,
mojo::PendingReceiver<media::mojom::Remoter> receiver) {}
// Allows the embedder to register one or more URLLoaderThrottles for a
// browser-initiated request. These include navigation requests and requests
// for web worker scripts.
//
// |wc_getter| returns the WebContents of the context of the |request| when
// available. It can return nullptr for requests for which it there are no
// WebContents (e.g., requests for web workers).
//
// |navigation_ui_data| is only valid if this is a navigation request.
//
// |frame_tree_node_id| is also invalid in some cases (e.g., requests for web
// workers).
//
// |navigation_id| is only valid if this is a navigation request.
//
// This is called on the UI thread.
virtual std::vector<std::unique_ptr<blink::URLLoaderThrottle>>
CreateURLLoaderThrottles(
const network::ResourceRequest& request,
BrowserContext* browser_context,
const base::RepeatingCallback<WebContents*()>& wc_getter,
NavigationUIData* navigation_ui_data,
FrameTreeNodeId frame_tree_node_id,
std::optional<int64_t> navigation_id);
// Allows the embedder to register one or more URLLoaderThrottles for handling
// a user-initiated `fetch(url, {keepalive: true})` request from documents or
// from worker scripts in the renderer. Note this is different from
// `CreateURLLoaderThrottles` and `CreateThrottlesForNavigation` that are
// created for requests initiated in the browser.
//
// Keepalive requests are initiated in the renderer, and have throttles
// created by `ContentRendererClient::CreateURLLoaderThrottleProvider`.
// However, these requests may live longer than the renderer process itself.
// Therefore, this method is used to create browser-side throttles in addition
// to renderer-side throttles.
//
// All the `URLLoaderThrottle` methods up to `WillProcessResponse` are called
// on the browser-side throttles for keepalive requests, but are effectively
// ignored while the renderer is still alive. However, if the renderer
// terminates before the request has finished, subsequent calls to
// browser-side throttle take effect, for example any throttling applied to
// redirects. Response on the browser side is ignored, so response-related
// throttle methods, e.g. `WillProcessResponse` itself, will not be called.
//
// See this section for the difference between the renderer-side throttles and
// browser-side throttles for keepalive requests:
// https://docs.google.com/document/d/1ZzxMMBvpqn8VZBZKnb7Go8TWjnrGcXuLS_USwVVRUvY/edit#heading=h.eu8mlvut479
//
// |wc_getter| returns the WebContents of the context of the |request| when
// available. It can return nullptr for requests for which it there are no
// WebContents (e.g., requests for web workers).
//
// |frame_tree_node_id| is also invalid in some cases
// (e.g., requests for web workers).
//
// This is called on the UI thread.
virtual std::vector<std::unique_ptr<blink::URLLoaderThrottle>>
CreateURLLoaderThrottlesForKeepAlive(
const network::ResourceRequest& request,
BrowserContext* browser_context,
const base::RepeatingCallback<WebContents*()>& wc_getter,
FrameTreeNodeId frame_tree_node_id);
// Allows the embedder to register per-scheme URLLoaderFactory implementations
// to handle navigation URL requests for schemes not handled by the Network
// Service.
// When a non-null PendingRemote is returned, requests for the given `scheme`
// are to be handled by the ContentBrowserClient-supplied factory.
// Otherwise (returning null), falling back to a default content//-supplied
// factory if any.
//
// Note that a RenderFrameHost or RenderProcessHost aren't passed in because
// these can change during a navigation (e.g. depending on redirects).
virtual mojo::PendingRemote<network::mojom::URLLoaderFactory>
CreateNonNetworkNavigationURLLoaderFactory(
const std::string& scheme,
FrameTreeNodeId frame_tree_node_id);
using NonNetworkURLLoaderFactoryMap =
std::map<std::string,
mojo::PendingRemote<network::mojom::URLLoaderFactory>>;
// Allows the embedder to register per-scheme URLLoaderFactory
// implementations to handle dedicated/shared worker main script requests
// initiated by the browser process for schemes not handled by the Network
// Service. The resulting |factories| must be used only by the browser
// process. The caller must not send any of |factories| to any other process.
virtual void RegisterNonNetworkWorkerMainResourceURLLoaderFactories(
BrowserContext* browser_context,
NonNetworkURLLoaderFactoryMap* factories);
// Allows the embedder to register per-scheme URLLoaderFactory
// implementations to handle service worker main/imported script requests
// initiated by the browser process for schemes not handled by the Network
// Service. Only called for service worker update check.
// The resulting |factories| must be used only by the browser process. The
// caller must not send any of |factories| to any other process.
virtual void RegisterNonNetworkServiceWorkerUpdateURLLoaderFactories(
BrowserContext* browser_context,
NonNetworkURLLoaderFactoryMap* factories);
// Allows the embedder to register per-scheme URLLoaderFactory implementations
// to handle subresource URL requests for schemes not handled by the Network
// Service. This function can also be used to make a factory for other
// non-subresource requests, such as:
// -downloads
// -service worker script when starting a service worker. In that case, the
// frame id will be MSG_ROUTING_NONE
virtual void RegisterNonNetworkSubresourceURLLoaderFactories(
int render_process_id,
int render_frame_id,
const std::optional<url::Origin>& request_initiator_origin,
NonNetworkURLLoaderFactoryMap* factories);
// Describes the purpose of the factory in WillCreateURLLoaderFactory().
enum class URLLoaderFactoryType {
// For navigations.
kNavigation,
// For downloads.
kDownload,
// For subresource requests from a document.
kDocumentSubResource,
// For the main script request of a dedicated worker or shared worker.
kWorkerMainResource,
// For the subresource requests from a dedicated worker or shared worker,
// including importScripts().
kWorkerSubResource,
// For fetching a service worker main script or subresource scripts,
// including importScripts().
kServiceWorkerScript,
// For regular fetches from a service worker (e.g., fetch(), XHR), not
// including importScripts().
kServiceWorkerSubResource,
// For prefetches.
kPrefetch,
// For DevTools-initiated requests.
kDevTools,
// For early hints.
kEarlyHints,
};
// Allows the embedder to intercept URLLoaderFactory interfaces used by the
// content layer to request resources from (usually) the network service.
//
// The parameters for URLLoaderFactory creation, namely |header_client| and
// |factory_override|, are used in the network service where the resulting
// factory is bound.
//
// |type| indicates the type of requests the factory will be used for.
//
// |frame| is set upon |type|:
// - For kServiceWorkerSubResource type and kServiceWorkerScript type,
// nullptr is set.
// - For kWorkerSubResource type used for SharedWorker, nullptr is set.
// - For kWorkerSubResource type used for DedicatedWorker
// (Note: used only in PlzDedicatedWorker cases),
// the worker's ancestor RenderFrameHost, which is always non-null, is set
// for preserving non-PlzDedicatedWorker behavior for WebViewClient.
// See: crbug.com/356827071.
// However, if the feature flag kUseAncestorRenderFrameForWorker is
// disabled, nullptr is set instead.
// - For kNavigation type, it's the RenderFrameHost the navigation might
// commit in.
// - Else, it's the initiating frame.
//
// |render_process_id| is the id of a render process host in which the
// URLLoaderFactory will be used.
//
// |request_initiator| indicates which origin will be the initiator of
// requests that will use the URLLoaderFactory. It's set when this factory is
// created a) for a renderer to use to fetch subresources
// (kDocumentSubResource, kWorkerSubResource, kServiceWorkerSubResource), or
// b) for the browser to use to fetch a worker (kWorkerMainResource) or
// service worker scripts (kServiceWorkerScript).
// An opaque origin is passed currently for navigation (kNavigation) and
// download (kDownload) factories even though requests from these factories
// can have a valid |network::ResourceRequest::request_initiator|.
// Note: For the kDocumentSubResource case, the |request_initiator| may be
// incorrect in some cases:
// - Sandboxing flags of the frame are not taken into account, which may mean
// that |request_initiator| might need to be opaque but isn't.
// - For about:blank frames, the |request_initiator| might be opaque or might
// be the process lock.
// TODO(lukasza): https://crbug.com/888079: Ensure that |request_initiator| is
// always accurate.
//
// |isolation_info| is only set for untrusted factories (according to
// |URLLoaderFactoryParams::is_trusted|). It is empty for trusted factories
// as they have no fixed IsolationInfo.
// |isolation_info| value should be identical to
// |URLLoaderFactoryParams::isolation_info|.
// For more information about trusted factories, see documentation at
// |network.mojom.URLRequest.trusted_params|.
//
// |navigation_id| is valid iff |type| is |kNavigation|. It corresponds to the
// Navigation ID returned by NavigationHandle::GetNavigationId().
//
// |ukm_source_id| can be used to record UKM events associated with the
// page or worker this URLLoaderFactory is intended for (it may be
// ukm::kInvalidSourceIdObj if there is no such ID available).
//
// |factory_builder| is used to add interceptors for requests for the
// URLLoaderFactory.
//
// |header_client| may be bound within this call. This can be used in
// URLLoaderFactoryParams when creating the factory.
//
// |bypass_redirect_checks| will be set to true when the embedder will be
// handling redirect security checks.
//
// |disable_secure_dns| will be set to true when the URLLoaderFactory will be
// used exclusively within a window that requires secure DNS to be turned off,
// such as a window created for captive portal resolution.
//
// |factory_override| gives the embedder a chance to replace the network
// service's "internal" URLLoaderFactory. See more details in the
// documentation for URLLoaderFactoryOverride in network_context.mojom.
// The point is to allow the embedder to override network behavior without
// losing the security features of the network service. The embedder should
// use |factory_override| instead of |factory_builder| if such security
// features are desired.
//
// Prefer |factory_builder| to this parameter if both work, as it is less
// error-prone.
//
// |factory_override| may be nullptr when this WillCreateURLLoaderFactory()
// call is for a factory that will be used for requests where such security
// features are no-op (e.g., for navigations). Otherwise, |*factory_override|
// is nullptr by default, and the embedder can elect to set
// |*factory_override| to a valid override.
//
// |navigation_response_task_runner| is a task runner that may be used for
// navigation request blocking tasks. Null when the URLLoaderFactory is not
// being created for a navigation request.
//
// Always called on the UI thread.
virtual void WillCreateURLLoaderFactory(
BrowserContext* browser_context,
RenderFrameHost* frame,
int render_process_id,
URLLoaderFactoryType type,
const url::Origin& request_initiator,
const net::IsolationInfo& isolation_info,
std::optional<int64_t> navigation_id,
ukm::SourceIdObj ukm_source_id,
network::URLLoaderFactoryBuilder& factory_builder,
mojo::PendingRemote<network::mojom::TrustedURLLoaderHeaderClient>*
header_client,
bool* bypass_redirect_checks,
bool* disable_secure_dns,
network::mojom::URLLoaderFactoryOverridePtr* factory_override,
scoped_refptr<base::SequencedTaskRunner> navigation_response_task_runner);
// Returns true when the embedder wants to intercept a websocket connection.
virtual bool WillInterceptWebSocket(RenderFrameHost* frame);
// Returns the WebSocket creation options.
virtual uint32_t GetWebSocketOptions(RenderFrameHost* frame);
using WebSocketFactory = base::OnceCallback<void(
const GURL& /* url */,
std::vector<network::mojom::HttpHeaderPtr> /* additional_headers */,
mojo::PendingRemote<network::mojom::WebSocketHandshakeClient>,
mojo::PendingRemote<network::mojom::WebSocketAuthenticationHandler>,
mojo::PendingRemote<network::mojom::TrustedHeaderClient>)>;
// Allows the embedder to intercept a WebSocket connection. This is called
// only when WillInterceptWebSocket returns true.
//
// |factory| provides a way to create a usual WebSocket connection. |url|,
// |requested_protocols|, |user_agent|, |handshake_client| are arguments
// given from the renderer.
//
// Always called on the UI thread and only when the Network Service is
// enabled.
virtual void CreateWebSocket(
RenderFrameHost* frame,
WebSocketFactory factory,
const GURL& url,
const net::SiteForCookies& site_for_cookies,
const std::optional<std::string>& user_agent,
mojo::PendingRemote<network::mojom::WebSocketHandshakeClient>
handshake_client);
// Allows the embedder to control if establishing a WebTransport connection is
// allowed.
//
// `process_id` is the ID of the process which hosts the initiator context.
// `frame_routing_id` is the ID of the frame with which the initiator context
// is associated, or MSG_ROUTING_NONE if there is no associated frame.
// `url` is the destination URL and
// `initiator_origin` is the origin of the initiator context.
// When the connection is blocked, `callback` is called with `error`.
// `handshake_client` will be proxied to block the connection while
// handshaking.
using WillCreateWebTransportCallback = base::OnceCallback<void(
mojo::PendingRemote<network::mojom::WebTransportHandshakeClient>
handshake_client,
std::optional<network::mojom::WebTransportErrorPtr> error)>;
virtual void WillCreateWebTransport(
int process_id,
int frame_routing_id,
const GURL& url,
const url::Origin& initiator_origin,
mojo::PendingRemote<network::mojom::WebTransportHandshakeClient>
handshake_client,
WillCreateWebTransportCallback callback);
// Allows the embedder to intercept or replace the mojo objects used for
// preference-following access to cookies. This is primarily used for objects
// vended to renderer processes for limited, origin-locked (to |origin|),
// access to script-accessible cookies from JavaScript, so returned objects
// should treat their inputs as untrusted. |site_for_cookies| held by
// |isolation_info| represents which domains the cookie manager should
// consider to be first-party, for purposes of SameSite cookies and any
// third-party cookie blocking the embedder may implement (if
// |site_for_cookies| is empty, no domains are first-party).
// |top_frame_origin| held by |isolation_info| represents the domain for
// top-level frame, and can be used to look up preferences that are dependent
// on that.
//
// |*receiver| is always valid upon entry.
//
// If this methods returns true, it should have created an object bound to
// |*receiver|, and the value of |*receiver| afterwards is unusable.
//
// If the method returns false, it's the caller's responsibility to create
// an appropriate RestrictedCookieManager bound to the value of |*receiver|
// after it finishes executing --- the implementation is permitted to swap out
// the value of |*receiver| for a different one (which permits interposition
// of a proxy object).
//
// If |is_service_worker| is false, then |process_id| and |routing_id|
// describe the frame the result is to be used from. If it's true, operations
// are not bound to a particular frame, but are in context of a service worker
// appropriate for |origin|.
//
// This is called on the UI thread.
virtual bool WillCreateRestrictedCookieManager(
network::mojom::RestrictedCookieManagerRole role,
BrowserContext* browser_context,
const url::Origin& origin,
const net::IsolationInfo& isolation_info,
bool is_service_worker,
int process_id,
int routing_id,
mojo::PendingReceiver<network::mojom::RestrictedCookieManager>* receiver);
// Allows the embedder to returns a list of request interceptors that can
// intercept a navigation request.
//
// Always called on the IO thread and only when the Network Service is
// enabled.
virtual std::vector<std::unique_ptr<URLLoaderRequestInterceptor>>
WillCreateURLLoaderRequestInterceptors(
content::NavigationUIData* navigation_ui_data,
FrameTreeNodeId frame_tree_node_id,
int64_t navigation_id,
bool force_no_https_upgrade,
scoped_refptr<base::SequencedTaskRunner> navigation_response_task_runner);
// Callback to handle a request for a URLLoader.
using URLLoaderRequestHandler = base::OnceCallback<void(
const network::ResourceRequest& resource_request,
mojo::PendingReceiver<network::mojom::URLLoader> url_loader_receiver,
mojo::PendingRemote<network::mojom::URLLoaderClient> client)>;
// Allows the embedder to return a callback that is capable of loading a
// service worker navigation preload request. Similar to
// |WillCreateURLLoaderRequestInterceptors()|, but only allows for synchronous
// decisions of whether to handle the preload request with no fallback. As a
// result of being synchronous, the embedder can decide which, if there are
// multiple, URLLoader handlers is appropriate. If the embedder returns a null
// callback, the default behavior will be used to fetch the request.
virtual URLLoaderRequestHandler
CreateURLLoaderHandlerForServiceWorkerNavigationPreload(
FrameTreeNodeId frame_tree_node_id,
const network::ResourceRequest& resource_request);
// Called when the NetworkService, accessible through
// content::GetNetworkService(), is created. Implementations should avoid
// calling into GetNetworkService() again to avoid re-entrancy if the service
// fails to start.
virtual void OnNetworkServiceCreated(
network::mojom::NetworkService* network_service);
// Configures the NetworkContextParams (|network_context_params|) and
// CertVerifierCreationParams (|cert_verifier_creation_params|) for a
// BrowserContext's StoragePartition. StoragePartition will use the
// NetworkService to create a new NetworkContext using these params.
//
// Embedders wishing to modify the initial configuration of the CertVerifier
// should edit |cert_verifier_creation_params| rather than
// |network_context_params->cert_verifier_params|, which will be discarded.
//
// By default the |network_context_params| is populated with |user_agent|
// based on the value returned by GetUserAgent(), and with a fixed legacy
// "accept-language" header value of "en-us,en".
// If |in_memory| is true, |relative_partition_path| is still a path that
// uniquely identifies the storage partition, though nothing should be written
// to it.
//
// If |relative_partition_path| is the empty string, it means this needs to
// create the default NetworkContext for the BrowserContext.
virtual void ConfigureNetworkContextParams(
BrowserContext* context,
bool in_memory,
const base::FilePath& relative_partition_path,
network::mojom::NetworkContextParams* network_context_params,
cert_verifier::mojom::CertVerifierCreationParams*
cert_verifier_creation_params);
// Returns the parent paths that contain all the network service's
// BrowserContexts' storage. Multiple paths can be returned, e.g. in case the
// persistent storage location differs from the cache storage location.
virtual std::vector<base::FilePath> GetNetworkContextsParentDirectory();
// Called once during initialization of NetworkService to provide constants
// to NetLog. (Though it may be called multiples times if NetworkService
// crashes and needs to be reinitialized). The return value is merged with
// |GetNetConstants()| and passed to FileNetLogObserver - see documentation
// of |FileNetLogObserver::CreateBounded()| for more information. The
// convention is to put new constants under a subdict at the key "clientInfo".
virtual base::Value::Dict GetNetLogConstants();
#if BUILDFLAG(IS_ANDROID)
// Only used by Android WebView.
// Returns:
// true - The check was successfully performed without throwing a
// Java exception. |*ignore_navigation| is set to the
// result of the check in this case.
// false - A Java exception was thrown. It is no longer safe to
// make JNI calls, because of the uncleared exception.
// Callers should return to the message loop as soon as
// possible, so that the exception can be rethrown.
virtual bool ShouldOverrideUrlLoading(FrameTreeNodeId frame_tree_node_id,
bool browser_initiated,
const GURL& gurl,
const std::string& request_method,
bool has_user_gesture,
bool is_redirect,
bool is_outermost_main_frame,
bool is_prerendering,
ui::PageTransition transition,
bool* ignore_navigation);
#endif
// Whether same-site RenderFrameHost swaps due to RenderDocument is allowed
// for navigations from `rfh`. Embedders can choose to disallow this if there
// are cases that are not correctly supported yet.
virtual bool ShouldAllowSameSiteRenderFrameHostChange(
const content::RenderFrameHost& rfh);
// Called on IO or UI thread to determine whether or not to allow load and
// render MHTML page from http/https URLs.
virtual bool AllowRenderingMhtmlOverHttp(
NavigationUIData* navigation_ui_data);
// Called on IO or UI thread to determine whether or not to allow load and
// render MHTML page from http/https URLs.
virtual bool ShouldForceDownloadResource(
content::BrowserContext* browser_context,
const GURL& url,
const std::string& mime_type);
virtual void CreateDeviceInfoService(
RenderFrameHost* render_frame_host,
mojo::PendingReceiver<blink::mojom::DeviceAPIService> receiver);
virtual void CreateManagedConfigurationService(
RenderFrameHost* render_frame_host,
mojo::PendingReceiver<blink::mojom::ManagedConfigurationService>
receiver);
virtual void CreatePaymentCredential(
RenderFrameHost* render_frame_host,
mojo::PendingReceiver<payments::mojom::PaymentCredential> receiver);
#if !BUILDFLAG(IS_ANDROID)
// Allows the embedder to provide an implementation of the Serial API.
virtual SerialDelegate* GetSerialDelegate();
#endif
// Allows the embedder to provide an implementation of the WebHID API.
virtual HidDelegate* GetHidDelegate();
// Allows the embedder to provide an implementation of the Web Bluetooth API.
virtual BluetoothDelegate* GetBluetoothDelegate();
// Allows the embedder to provide an implementation of the WebUSB API.
virtual UsbDelegate* GetUsbDelegate();
// Allows the embedder to provide an implementation of the Private Network
// Device API.
virtual PrivateNetworkDeviceDelegate* GetPrivateNetworkDeviceDelegate();
// Allows the embedder to provide an implementation of the Local Font Access
// API.
virtual FontAccessDelegate* GetFontAccessDelegate();
#if BUILDFLAG(IS_CHROMEOS)
// Allows the embedder to provide an implementation of the Web Smart Card API.
virtual SmartCardDelegate* GetSmartCardDelegate();
#endif
// Attempt to open the Payment Handler window inside its corresponding
// PaymentRequest UI surface. Returns true if the ContentBrowserClient
// implementation supports this operation (desktop Chrome) or false otherwise.
// |callback| is invoked with true if the window opened successfully, false if
// the attempt failed. Both the render process and frame IDs are also passed
// to |callback|.
virtual bool ShowPaymentHandlerWindow(
content::BrowserContext* browser_context,
const GURL& url,
base::OnceCallback<void(bool /* success */,
int /* render_process_id */,
int /* render_frame_id */)> callback);
// Returns true if the tab security level is acceptable to allow WebAuthn
// requests, false otherwise. This is not attached to
// WebAuthenticationDelegate so it can be available on Android as well.
virtual bool IsSecurityLevelAcceptableForWebAuthn(
content::RenderFrameHost* rfh,
const url::Origin& caller_origin);
#if !BUILDFLAG(IS_ANDROID)
// Returns an embedder-provided subclass of WebAuthenticationDelegate. This
// allows the embedder to customize the implementation of the Web
// Authentication API.
virtual WebAuthenticationDelegate* GetWebAuthenticationDelegate();
// Returns an AuthenticatorRequestClientDelegate subclass instance to provide
// embedder-specific configuration for a single Web Authentication API request
// being serviced in a given RenderFrame. The instance is guaranteed to be
// destroyed before the RenderFrame goes out of scope. The embedder may choose
// to return nullptr to indicate that the request cannot be serviced right
// now.
virtual std::unique_ptr<AuthenticatorRequestClientDelegate>
GetWebAuthenticationRequestDelegate(RenderFrameHost* render_frame_host);
#endif
// Get platform ClientCertStore. May return nullptr. Called on the UI thread.
virtual std::unique_ptr<net::ClientCertStore> CreateClientCertStore(
BrowserContext* browser_context);
// Creates a LoginDelegate that asks the user for a username and password.
// |web_contents| can be null if the auth request is coming from a service
// worker. If |web_contents| is not null, it is guaranteed to be associated
// with the same BrowserContext as |browser_context|.
// |browser_context| is always set.
// |is_request_for_primary_main_frame_navigation| is whether the request is
// for a navigation of the primary main frame.
// |is_request_for_navigation| is whether the request is for a navigation.
// |first_auth_attempt| is needed by AwHttpAuthHandler constructor.
// |auth_required_callback| is used to transfer auth credentials to
// URLRequest::SetAuth(). The credentials parameter of the callback
// is std::nullopt if the request should be cancelled; otherwise
// the credentials will be used to respond to the auth challenge.
// This method is called on the UI thread. The callback must be
// called on the UI thread as well. If the LoginDelegate is destroyed
// before the callback, the request has been canceled and the callback
// should not be called.
//
// NOTE: For the Negotiate challenge on ChromeOS the credentials are handled
// on OS level. In that case CreateLoginDelegate returns nullptr, since the
// credentials are not passed to the browser and the authentication
// should be cancelled. (See b/260522530).
//
// |auth_required_callback| may not be called reentrantly. If the request may
// be handled synchronously, CreateLoginDelegate must post the callback to a
// separate event loop iteration, taking care not to call it if the
// LoginDelegate is destroyed in the meantime.
//
// There is no guarantee that |web_contents| will outlive the
// LoginDelegate. The LoginDelegate implementation can use WebContentsObserver
// to be notified when the WebContents is destroyed.
//
// TODO(davidben): This should be guaranteed. It isn't due to asynchronous
// destruction between the network logic and the owning WebContents, but that
// should be hidden from the embedder. Ideally this method would be on
// WebContentsDelegate, where the lifetime ordering is more
// obvious. https://crbug.com/456255
virtual std::unique_ptr<LoginDelegate> CreateLoginDelegate(
const net::AuthChallengeInfo& auth_info,
WebContents* web_contents,
BrowserContext* browser_context,
const GlobalRequestID& request_id,
bool is_request_for_primary_main_frame_navigation,
bool is_request_for_navigation,
const GURL& url,
scoped_refptr<net::HttpResponseHeaders> response_headers,
bool first_auth_attempt,
LoginAuthRequiredCallback auth_required_callback);
// Launches the url for the given tab. Returns true if an attempt to handle
// the url was made, e.g. by launching an app. Note that this does not
// guarantee that the app successfully handled it.
//
// |initiating_origin| is the origin of the last redirecting server (falling
// back to the request initiator if there were no redirects / if the request
// goes straight to an external protocol, or null, e.g. in the case of
// browser-initiated navigations. The initiating origin is intended to help
// users make security decisions about whether to allow an external
// application to launch.
//
// |initiator_document| refers to the document that initiated the navigation,
// if it is still available. Use |initiating_origin| instead for security
// decisions.
//
// |out_factory| allows the embedder to continue the navigation, by providing
// their own URLLoader. If it isn't set, the navigation is canceled. It is
// canceled either silently when this function returns true, or with an error
// page otherwise.
virtual bool HandleExternalProtocol(
const GURL& url,
base::RepeatingCallback<WebContents*()> web_contents_getter,
FrameTreeNodeId frame_tree_node_id,
NavigationUIData* navigation_data,
bool is_primary_main_frame,
bool is_in_fenced_frame_tree,
network::mojom::WebSandboxFlags sandbox_flags,
ui::PageTransition page_transition,
bool has_user_gesture,
const std::optional<url::Origin>& initiating_origin,
RenderFrameHost* initiator_document,
const net::IsolationInfo& isolation_info,
mojo::PendingRemote<network::mojom::URLLoaderFactory>* out_factory);
// Creates an OverlayWindow to be used for video or Picture-in-Picture.
// This window will house the content shown when in Picture-in-Picture mode.
// This will return a new OverlayWindow.
//
// May return nullptr if embedder does not support this functionality. The
// default implementation provides nullptr OverlayWindow.
virtual std::unique_ptr<VideoOverlayWindow>
CreateWindowForVideoPictureInPicture(
VideoPictureInPictureWindowController* controller);
// Registers the watcher to observe updates in RendererPreferences.
virtual void RegisterRendererPreferenceWatcher(
BrowserContext* browser_context,
mojo::PendingRemote<blink::mojom::RendererPreferenceWatcher> watcher);
// Returns true if it is OK to accept untrusted exchanges, such as expired
// signed exchanges, and unsigned Web Bundles.
// The embedder may require --user-data-dir flag and so on to accept it in
// order to make sure that insecure contents will not persist accidentally.
virtual bool CanAcceptUntrustedExchangesIfNeeded();
// Called on every request completion to update the data use when network
// service is enabled.
virtual void OnNetworkServiceDataUseUpdate(
GlobalRenderFrameHostId render_frame_host_id,
int32_t network_traffic_annotation_id_hash,
int64_t recv_bytes,
int64_t sent_bytes);
// Returns the absolute path to a directory in which sandboxed out-of-process
// Storage Service instances should be confined. By default this is empty, and
// the browser cannot create sandboxed Storage Service instances.
virtual base::FilePath GetSandboxedStorageServiceDataDirectory();
// Returns true if the audio service should be sandboxed. false otherwise.
virtual bool ShouldSandboxAudioService();
// Returns true if the network service should be sandboxed. false otherwise.
// This is called on the UI thread.
virtual bool ShouldSandboxNetworkService();
// Returns true if system DNS resolution should be run outside of the network
// service. This is useful if the network service is sandboxed but system DNS
// resolution cannot run sandboxed.
virtual bool ShouldRunOutOfProcessSystemDnsResolution();
// Browser-side API to log blink UseCounters for events that don't occur in
// the renderer.
virtual void LogWebFeatureForCurrentPage(
content::RenderFrameHost* render_frame_host,
blink::mojom::WebFeature feature) {}
virtual void LogWebDXFeatureForCurrentPage(
content::RenderFrameHost* render_frame_host,
blink::mojom::WebDXFeature feature) {}
// Returns a string describing the embedder product name and version,
// of the form "productname/version", with no other slashes.
// Used as part of the user agent string.
virtual std::string GetProduct();
// Returns the user agent. This can also return the reduced user agent, based
// on blink::features::kUserAgentReduction. Content may cache this value.
virtual std::string GetUserAgent();
// Returns the user agent, allowing for preferences (i.e. enterprise policy).
// Default to the non-context |GetUserAgent| above.
virtual std::string GetUserAgentBasedOnPolicy(
content::BrowserContext* context);
// Returns user agent metadata. Content may cache this value.
virtual blink::UserAgentMetadata GetUserAgentMetadata();
// Returns a 256x256 transparent background image of the product logo, i.e.
// the browser icon, if available.
virtual std::optional<gfx::ImageSkia> GetProductLogo();
// Returns whether |origin| should be considered a integral component similar
// to native code, and as such whether its log messages should be recorded.
virtual bool IsBuiltinComponent(BrowserContext* browser_context,
const url::Origin& origin);
// Returns whether given |url| has to be blocked. It's used only for renderer
// debug URLs, as other requests are handled via NavigationThrottlers and
// blocklist policies are applied there.
virtual bool ShouldBlockRendererDebugURL(const GURL& url,
BrowserContext* context,
RenderFrameHost* render_frame_host);
#if BUILDFLAG(IS_ANDROID)
// Defines the heuristics we can use to enable wide color gamut (WCG).
enum class WideColorGamutHeuristic {
kUseDisplay, // Use WCG if display supports it.
kUseWindow, // Use WCG if window is WCG.
kNone, // Never use WCG.
};
// Returns kNone by default.
virtual WideColorGamutHeuristic GetWideColorGamutHeuristic();
// Creates the TtsEnvironmentAndroid. A return value of null results in using
// a default implementation.
virtual std::unique_ptr<TtsEnvironmentAndroid> CreateTtsEnvironmentAndroid();
// If enabled, DialogOverlays will observe the container view for location
// changes and reposition themselves automatically. Note that this comes with
// some overhead and should only be enabled if the embedder itself can be
// moved. Defaults to false.
virtual bool ShouldObserveContainerViewLocationForDialogOverlays();
#endif
// Obtains the list of MIME types that are for plugins with external handlers.
virtual base::flat_set<std::string> GetPluginMimeTypesWithExternalHandlers(
BrowserContext* browser_context);
// Possibly augment |download_policy| based on the status of |frame_host| as
// well as |user_gesture|.
virtual void AugmentNavigationDownloadPolicy(
RenderFrameHost* frame_host,
bool user_gesture,
blink::NavigationDownloadPolicy* download_policy);
// Writes the browsing topics for a particular requesting context into the
// output parameter `topics` and returns whether the access permission is
// allowed. `context_origin` and `main_frame` will potentially be used for the
// access permission check, for calculating the topics, and/or for the
// `BrowsingTopicsPageLoadDataTracker` to track the API usage. If `get_topics`
// is true, topics calculation result will be stored to `topics`. If `observe`
// is true, record the observation (i.e. the <calling context site,
// top level site> pair) to the `BrowsingTopicsSiteDataStorage` database.
virtual bool HandleTopicsWebApi(
const url::Origin& context_origin,
content::RenderFrameHost* main_frame,
browsing_topics::ApiCallerSource caller_source,
bool get_topics,
bool observe,
std::vector<blink::mojom::EpochTopicPtr>& topics);
// Returns the number of distinct topics epochs versions for `main_frame`.
// Must be called when topics are eligible (i.e. `HandleTopicsWebApi` would
// return true for the same main frame context).
virtual int NumVersionsInTopicsEpochs(
content::RenderFrameHost* main_frame) const;
// Returns whether a site is blocked to use Bluetooth scanning API.
virtual bool IsBluetoothScanningBlocked(
content::BrowserContext* browser_context,
const url::Origin& requesting_origin,
const url::Origin& embedding_origin);
// Blocks a site to use Bluetooth scanning API.
virtual void BlockBluetoothScanning(content::BrowserContext* browser_context,
const url::Origin& requesting_origin,
const url::Origin& embedding_origin);
// Returns via callback:
// 1. A boolean indicating whether persistent device IDs are allowed.
// 2. A salt for hashing media device IDs for the given storage key.
// Ideally, the salt should be unique per `storage_key` and persistent if
// cookie access is allowed for `site_for_cookies`. However the embedder is
// free to return a salt that does not satisfy all these properties.
virtual void GetMediaDeviceIDSalt(
content::RenderFrameHost* rfh,
const net::SiteForCookies& site_for_cookies,
const blink::StorageKey& storage_key,
base::OnceCallback<void(bool, const std::string&)> callback);
// Requests an SMS from |origin_list| from a remote device with telephony
// capabilities, for example the user's mobile phone. Callbacks |callback|
// with the origins and one-time-code from the SMS upon success or a failure
// type on error. The returned callback cancels receiving of the response.
// Calling it will run |callback| if it hasn't been executed yet, otherwise it
// will be a no-op. Returns a null callback if fetching from a remote device
// is disabled.
virtual base::OnceClosure FetchRemoteSms(
content::WebContents* web_contents,
const std::vector<url::Origin>& origin_list,
base::OnceCallback<void(std::optional<std::vector<url::Origin>>,
std::optional<std::string>,
std::optional<content::SmsFetchFailureType>)>
callback);
// Uploads an enterprise legacy tech event to the enterprise management server
// if the `url` or `frame_url` that triggers the event is matched to any
// enterprise policies that are set by administrators. For a description of
// reported fields, see
// https://crsrc.org/c/components/enterprise/common/proto/legacy_tech_events.proto
virtual void ReportLegacyTechEvent(
content::RenderFrameHost* render_frame_host,
const std::string& type,
const GURL& url,
const GURL& frame_url,
const std::string& filename,
uint64_t line,
uint64_t column,
std::optional<LegacyTechCookieIssueDetails> cookie_issue_details);
// Check whether paste is allowed. To paste, an implementation may require
// a `render_frame_host` to have user activation or various permissions.
// Primary checks should be done in the renderer, to allow for errors to
// be emitted, but this allows for a security recheck in the browser in
// case of compromised renderers.
//
// Due to potential race conditions, permissions may be disallowed here in
// uncompromised renderers. For example, a permission may be granted when
// checked in the renderer, but the permission may be revoked by the time
// this check starts.
virtual bool IsClipboardPasteAllowed(
content::RenderFrameHost* render_frame_host);
// Determines if a clipboard paste containing |data| of type |data_type| is
// allowed in this renderer frame. Possible data types supported for paste
// are in the ClipboardHostImpl class. Text based formats will use the
// data_type ui::ClipboardFormatType::PlainTextType() unless it is known
// to be of a more specific type, like RTF or HTML, in which case a type
// such as ui::ClipboardFormatType::RtfType() or
// ui::ClipboardFormatType::HtmlType() is used.
//
// It is also possible for the data type to be
// ui::ClipboardFormatType::DataTransferCustomType() indicating that the paste
// uses a custom data format. It is up to the implementation to attempt to
// understand the type if possible. It is acceptable to deny pastes of
// unknown data types.
//
// The implementation is expected to show UX to the user if needed. If
// shown, the UX should be associated with the specific WebContents.
//
// The callback is called, possibly asynchronously, with a status indicating
// whether the operation is allowed or not. If the operation is allowed,
// the callback is passed the data the can be pasted.
virtual void IsClipboardPasteAllowedByPolicy(
const ClipboardEndpoint& source,
const ClipboardEndpoint& destination,
const ClipboardMetadata& metadata,
ClipboardPasteData clipboard_paste_data,
IsClipboardPasteAllowedCallback callback);
// Determines if a clipboard copy is allowed by enterprise policies. The
// implementation might show UX to the user and call `callback`
// asynchronously.
virtual void IsClipboardCopyAllowedByPolicy(
const ClipboardEndpoint& source,
const ClipboardMetadata& metadata,
const ClipboardPasteData& data,
IsClipboardCopyAllowedCallback callback);
#if BUILDFLAG(ENABLE_VR)
// Allows the embedder to provide mechanisms to integrate with WebXR
// functionality.
virtual XrIntegrationClient* GetXrIntegrationClient();
#endif
// External applications and services may launch the browser in a mode which
// exposes browser control interfaces via Mojo. Any such interface binding
// request received from an external client is passed to this method.
virtual void BindBrowserControlInterface(mojo::ScopedMessagePipeHandle pipe);
// Returns true when a context (e.g., iframe) whose URL is |url| should
// inherit the parent COEP value implicitly, similar to "blob:"
virtual bool ShouldInheritCrossOriginEmbedderPolicyImplicitly(
const GURL& url);
// Returns true when a ServiceWorker whose URL is |url| should inherit its
// PolicyContainer from its creator instead of from its main script
// response.
virtual bool ShouldServiceWorkerInheritPolicyContainerFromCreator(
const GURL& url);
// Allows the embedder to grant `child_id` access to additional origins.
// This is needed for Service Workers running in non-web-safe origins.
// This will only be called if the worker process is locked to the same
// origin as `script_url`.
virtual void GrantAdditionalRequestPrivilegesToWorkerProcess(
int child_id,
const GURL& script_url);
enum class PrivateNetworkRequestPolicyOverride {
kForceAllow,
kBlockInsteadOfWarn,
kDefault,
};
// Returns whether and how we should override the default private network
// request policy.
//
// See the Private Network Access spec for more details:
// https://wicg.github.io/private-network-access.
//
// |browser_context| must not be nullptr. Caller retains ownership.
// |origin| is the origin of a navigation ready to commit.
virtual PrivateNetworkRequestPolicyOverride
ShouldOverridePrivateNetworkRequestPolicy(BrowserContext* browser_context,
const url::Origin& origin);
// Whether the JIT should be disabled for the given |browser_context| and
// |site_url|. Pass an empty GURL for |site_url| to get the default JIT policy
// for the current |browser_context|.
// |site_url| should not be resolved to an effective URL before passing to
// this function.
virtual bool IsJitDisabledForSite(BrowserContext* browser_context,
const GURL& site_url);
// Whether v8 optimizations should be disabled for the given |browser_context|
// and |site_url|. Pass an empty GURL for |site_url| to get the default
// optimization policy for |browser_context|. Don't resolve |site_url| to an
// effective URL before passing it to this function.
//
// This is distinct from IsJitDisabledForSite(): IsJitDisabledForSite()
// disables JIT compilation altogether in the process, which fully disables
// wasm and forces v8 to operate in interpreted mode.
// AreV8OptimizationsDisabledForSite() only disables v8's "higher tier"
// optimizers, leaving the basic JIT compiler and the wasm JIT compiler
// enabled.
virtual bool AreV8OptimizationsDisabledForSite(
BrowserContext* browser_context,
const GURL& site_url);
// Returns the URL-Keyed Metrics service for chrome:ukm.
virtual ukm::UkmService* GetUkmService();
// Returns the Origin Trials Settings. If the embedder does not support Origin
// Trials, the method will return a null
// blink::mojom::OriginTrialsSettingsPtr.
virtual blink::mojom::OriginTrialsSettingsPtr GetOriginTrialsSettings();
// Called when a keepalive request
// (https://fetch.spec.whatwg.org/#request-keepalive-flag) is requested.
virtual void OnKeepaliveRequestStarted(BrowserContext* browser_context);
// Called when a keepalive request finishes either successfully or
// unsuccessfully.
virtual void OnKeepaliveRequestFinished();
#if BUILDFLAG(IS_MAC)
// Sets up the embedder sandbox parameters for the given sandbox type. Returns
// true if parameters were successfully set up or false if no additional
// parameters were set up.
virtual bool SetupEmbedderSandboxParameters(
sandbox::mojom::Sandbox sandbox_type,
sandbox::SandboxCompiler* compiler);
#endif // BUILDFLAG(IS_MAC)
virtual void GetHyphenationDictionary(
base::OnceCallback<void(const base::FilePath&)>);
// Returns true if the embedder has an error page to show for the given http
// status code.
virtual bool HasErrorPage(int http_status_code);
// Creates a controller that intermediates the exchange of ID tokens for the
// given |web_contents|.
virtual std::unique_ptr<IdentityRequestDialogController>
CreateIdentityRequestDialogController(WebContents* web_contents);
// Creates a digital credential provider to fetch from native apps.
virtual std::unique_ptr<DigitalIdentityProvider>
CreateDigitalIdentityProvider();
// Returns true if JS dialogs from an iframe with different origin from the
// main frame should be disallowed.
virtual bool SuppressDifferentOriginSubframeJSDialogs(
BrowserContext* browser_context);
// Allows the embedder to provide an AnchorElementPreconnectDelegate that will
// be used to make heuristics based preconnects.
virtual std::unique_ptr<AnchorElementPreconnectDelegate>
CreateAnchorElementPreconnectDelegate(RenderFrameHost& render_frame_host);
// Allows the embedder to provide a SpeculationHostDelegate that will be used
// to process speculation rules provided by the document hosted by
// `render_frame_host`.
virtual std::unique_ptr<SpeculationHostDelegate>
CreateSpeculationHostDelegate(RenderFrameHost& render_frame_host);
// Allows the embedder to provide a PrefetchServiceDelegate that will be used
// to make prefetches.
virtual std::unique_ptr<PrefetchServiceDelegate>
CreatePrefetchServiceDelegate(BrowserContext* browser_context);
// Allows the embedder to provide a PrerenderWebContentsDelegate that will be
// used to start prerendering in a new WebContents (i.e. new tab).
virtual std::unique_ptr<PrerenderWebContentsDelegate>
CreatePrerenderWebContentsDelegate();
// Returns true if find-in-page should be disabled for a given `origin`.
virtual bool IsFindInPageDisabledForOrigin(const url::Origin& origin);
// Called on every WebContents creation.
virtual void OnWebContentsCreated(WebContents* web_contents);
// Allows overriding the policy of whether to assign documents to origin-keyed
// agent clusters by default. That is, it controls the behaviour when the
// Origin-Agent-Cluster header is absent.
//
// If the embedder returns true, this prevents the use of origin-keyed agent
// clusters by default (i.e., when the Origin-Agent-Cluster header is absent).
// If the embedder returns false, then the decision is based on
// blink::features::kOriginAgentClusterDefaultEnabled instead.
virtual bool ShouldDisableOriginAgentClusterDefault(
BrowserContext* browser_context);
// Whether a navigation in |render_frame_host| should preconnect early.
virtual bool ShouldPreconnectNavigation(RenderFrameHost* render_frame_host);
// Returns true if First-Party Sets is enabled. The value of this method
// should not change in a single browser session.
virtual bool IsFirstPartySetsEnabled();
// Returns true iff the embedder will provide a list of First-Party Sets via
// content::FirstPartySetsHandler::SetPublicFirstPartySets during startup, at
// some point. If `IsFirstPartySetsEnabled()` returns false, this method will
// still be called, but its return value will be ignored.
//
// If this method returns false but `IsFirstPartySetsEnabled()` returns true
// (e.g. in tests), an empty list will be used instead of waiting for the
// embedder to call content::FirstPartySetsHandler::SetPublicFirstPartySets.
virtual bool WillProvidePublicFirstPartySets();
// This returns a dictionary that an embedder can use to pass data from the
// browser to the renderer for error pages.
// The |error_code| is the network error as specified in
// `net/base/net_error_list.h`. Information is returned in a struct. Default
// implementation returns nullptr.
virtual mojom::AlternativeErrorPageOverrideInfoPtr
GetAlternativeErrorPageOverrideInfo(
const GURL& url,
content::RenderFrameHost* render_frame_host,
content::BrowserContext* browser_context,
int32_t error_code);
// Called when a `SharedStorageWorkletHost` is created for `rfh`.
virtual void OnSharedStorageWorkletHostCreated(RenderFrameHost* rfh) {}
// Called when `sharedStorage.selectURL()` is called for some frame on a page
// whose main frame is `main_rfh`.
virtual void OnSharedStorageSelectURLCalled(RenderFrameHost* main_rfh) {}
// Whether the outermost origin should be sent to the renderer. This is
// needed if the outermost origin is an extension, but for normal pages
// we do not want to expose this.
virtual bool ShouldSendOutermostOriginToRenderer(
const url::Origin& outermost_origin);
// Returns true if a given filesystem: `url` navigation is allowed (i.e.
// originates from a Chrome App). Returns false for all other
// navigations.
virtual bool IsFileSystemURLNavigationAllowed(
content::BrowserContext* browser_context,
const GURL& url);
// Called when optionally blockable insecure content is displayed on a secure
// page (resulting in mixed content).
virtual void OnDisplayInsecureContent(WebContents* web_contents) {}
#if BUILDFLAG(IS_MAC)
// Gets the suffix for an embedder-specific helper child process. The
// |child_flags| is a value greater than
// ChildProcessHost::CHILD_EMBEDDER_FIRST. The embedder-specific helper app
// bundle should be placed next to the known //content Mac helpers in the
// framework bundle.
virtual std::string GetChildProcessSuffix(int child_flags);
#endif // BUILDFLAG(IS_MAC)
// Checks if Isolated Web Apps are enabled, e.g. by feature flag
// or in any other way.
virtual bool AreIsolatedWebAppsEnabled(BrowserContext* browser_context);
// This function can serve to block third-party storage partitioning
// from being enabled if it returns false. If it returns true, then
// we fallback on the base feature to determine if partitioning is on.
virtual bool IsThirdPartyStoragePartitioningAllowed(
content::BrowserContext* browser_context,
const url::Origin& top_level_origin);
// Checks whether credentials should be included in fenced frame automatic
// beacon requests, based on user cookie settings. Any cookies sent in an
// automatic beacon response header will be honored and stored.
//
// `destination_url` is the URL that the automatic beacon is being sent to,
// and the URL whose origin's cookies will be accessed.
//
// `top_frame_origin` is the main frame of the page that ran the auction that
// resulted in the creation of the FencedFrameReporter that called this
// function.
//
// TODO(crbug.com/40286778): After 3PCD, this will be dead code and should be
// removed.
virtual bool AreDeprecatedAutomaticBeaconCredentialsAllowed(
content::BrowserContext* browser_context,
const GURL& destination_url,
const url::Origin& top_frame_origin);
// Checks if file or directory pickers from the file system access web API
// require a user gesture (transient activation). They usually do, but this
// can be bypassed via admin policy.
virtual bool IsTransientActivationRequiredForShowFileOrDirectoryPicker(
WebContents* web_contents);
// Checks if `origin` should always receive a first-party StorageKey
// in RenderFrameHostImpl. Currently in Chrome, this is true for all
// extension origins.
virtual bool ShouldUseFirstPartyStorageKey(const url::Origin& origin);
// Allows the embedder to return a delegate for the responsiveness calculator.
// The default implementation returns nullptr.
virtual std::unique_ptr<ResponsivenessCalculatorDelegate>
CreateResponsivenessCalculatorDelegate();
// Checks if the given BrowserContext can receive cookie changes when it is in
// BFCache.
virtual bool CanBackForwardCachedPageReceiveCookieChanges(
content::BrowserContext& browser_context,
const GURL& url,
const net::SiteForCookies& site_for_cookies,
const std::optional<url::Origin>& top_frame_origin,
const net::CookieSettingOverrides overrides);
// Callback will be called with either an error
// (!=`FileSystemAccessStatus::kOk`) or a list of cloud file handles as
// result.
using GetCloudIdentifiersCallback = base::OnceCallback<void(
blink::mojom::FileSystemAccessErrorPtr,
std::vector<blink::mojom::FileSystemAccessCloudIdentifierPtr>)>;
// Retrieve the identifiers the cloud storage providers use for a given
// file/directory.
virtual void GetCloudIdentifiers(
const storage::FileSystemURL& url,
FileSystemAccessPermissionContext::HandleType handle_type,
GetCloudIdentifiersCallback callback);
// Checks if the given BrowserContext allows to store the page loaded with
// "Cache-control: no-store" header in BFCache.
virtual bool ShouldAllowBackForwardCacheForCacheControlNoStorePage(
content::BrowserContext* browser_context);
// Set whether the browser is running in minimal mode (where most subsystems
// are left uninitialized).
virtual void SetIsMinimalMode(bool minimal) {}
// Returns whether, when using SubCaptureTargets (cropTo, restrictTo),
// the sub-capture target tokens should be associated with the *outermost*
// main-frame or embedder. If not, then the direct main-frame will be used.
// This even allows changing the WebContents being captured, which is a very
// powerful feature, and is likely only appropriate on embedded systems
// where the Web application is trusted.
virtual bool UseOutermostMainFrameOrEmbedderForSubCaptureTargets() const;
#if !BUILDFLAG(IS_ANDROID)
// Allows the embedder to correlate backend media services with profile-keyed
// effect settings.
virtual void BindVideoEffectsManager(
const std::string& device_id,
BrowserContext* browser_context,
mojo::PendingReceiver<media::mojom::VideoEffectsManager>
video_effects_manager);
// Allows the embedder to correlate backend media services with profile-keyed
// effect settings.
virtual void BindVideoEffectsProcessor(
const std::string& device_id,
BrowserContext* browser_context,
mojo::PendingReceiver<video_effects::mojom::VideoEffectsProcessor>
video_effects_processor);
#endif // !BUILDFLAG(IS_ANDROID)
// Re-order audio device `infos` based on user preference. The ordering will
// be from most preferred to least preferred.
virtual void PreferenceRankVideoDeviceInfos(
BrowserContext* browser_context,
blink::WebMediaDeviceInfoArray& infos);
// Re-order video device `infos` based on user preference. The ordering will
// be from most preferred to least preferred.
virtual void PreferenceRankAudioDeviceInfos(
BrowserContext* browser_context,
blink::WebMediaDeviceInfoArray& infos);
// Allows the embedder to override the proxy bypass policy used for IP
// Protection.
// Even if a domain is part of the masked domain list and is
// eligible for IP Protection, the embedder can use a certain policy to bypass
// certain network requests from IP Protection.
// By default, there is no bypass policy used.
virtual network::mojom::IpProtectionProxyBypassPolicy
GetIpProtectionProxyBypassPolicy();
// Prewarms the HTTP disk cache entries for the given URL and the
// subresources if possible.
// `initiator_origin` is the origin that triggers the prewarm request,
// if it exists. More precisely:
// - If the prewarm is triggered by navigation, `initiator_origin` is
// the navigation's initiator origin.
// - If the prewarm is triggered by interactions with the contents of a
// document (e.g. anchor links), `initiator_origin` is the document's
// origin.
// - For all other triggers (e.g. interaction with browser UI),
// `initiator_origin` is nullopt.
// `initiator_origin` will be used to key the entry, along with the URL
// for LCP prediction.
virtual void MaybePrewarmHttpDiskCache(
BrowserContext& browser_context,
const std::optional<url::Origin>& initiator_origin,
const GURL& navigation_url);
enum class MultiCaptureChanged { kStarted, kStopped };
// Notifies embedders that a the `state` of a multi capture with `label`
// changed for a certain `capturer_rfh_id`.
virtual void NotifyMultiCaptureStateChanged(
GlobalRenderFrameHostId capturer_rfh_id,
const std::string& label,
MultiCaptureChanged state);
// Allows the embedder to return a delegate for DIPS (Bounce Tracking
// Mitigations). The default implementation returns nullptr, resulting in
// default behavior.
virtual std::unique_ptr<DipsDelegate> CreateDipsDelegate();
// Allows the embedder to suppress the firing of the AXLoadComplete event.
// Currently, this is only respected on Mac. Since VoiceOver on Mac will
// move the focus to web content if the AXLoadComplete event is fired,
// this is used to not move VoiceOver's focus on navigation. This is used
// today to suppress the event when the user navigates to the new tab page.
virtual bool ShouldSuppressAXLoadComplete(RenderFrameHost* rfh);
virtual void BindAIManager(
BrowserContext* browser_context,
std::variant<RenderFrameHost*, base::SupportsUserData*> host,
mojo::PendingReceiver<blink::mojom::AIManager> receiver);
#if !BUILDFLAG(IS_ANDROID)
// Given the last committed URL of the RenderFrameHost, |frame_url|, and the
// |manifest_id| of an app, the embedder should call |callback| with the
// first matching web app ensuring:
//
// - |manifest_id| is equal to the found app id.
// - |frame_url| is within the scope of the found app.
// - The found app is locally installed in |browser_context|.
//
// When no app is found, |callback| should be called with a nullopt.
virtual void QueryInstalledWebAppsByManifestId(
const GURL& frame_url,
const GURL& manifest_id,
content::BrowserContext* browser_context,
base::OnceCallback<void(std::optional<blink::mojom::RelatedApplication>)>
callback);
#endif // !BUILDFLAG(IS_ANDROID)
// Whether the destination URL from a NavigationHandle can be saved and
// synced to another machine and reloaded there. Some navigations, such as
// http POST requests, cannot be synced across machines as the request body
// is no longer available when reloading the URL.
virtual bool IsSaveableNavigation(NavigationHandle* navigation_handle);
#if BUILDFLAG(IS_WIN)
// Invoked when an accessibility client requests the UI automation root object
// for a window. `uia_provider_enabled` is true when the request was
// satisfied, and false when the request was refused.
virtual void OnUiaProviderRequested(bool uia_provider_enabled);
#endif
// Returns a handle to a shared memory region to hold performance scenario
// state for the given process, or an invalid handle if there is none. The
// result can be transferred to the child process and passed to a
// ScopedReadOnlyScenarioMemory object with Scope::kCurrentProcess (see
// //third_party/blink/public/common/performance/performance_scenarios.h)
virtual base::ReadOnlySharedMemoryRegion
GetPerformanceScenarioRegionForProcess(RenderProcessHost* process_host);
// Returns a handle to a shared memory region to hold performance scenario
// state for all processes, or an invalid handle if there is none. The result
// can be transferred to a child process and passed to a
// ScopedReadOnlyScenarioMemory object with Scope::kGlobal
// (see//third_party/blink/public/common/performance/performance_scenarios.h)
virtual base::ReadOnlySharedMemoryRegion GetGlobalPerformanceScenarioRegion();
// Indicates whether this client allows paint holding in cross-origin
// navigations even if there was no user activation.
virtual bool AllowNonActivatedCrossOriginPaintHolding();
};
} // namespace content
#endif // CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_