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content / public / browser / preloading_trigger_type.h [blame]
// Copyright 2021 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_PRELOADING_TRIGGER_TYPE_H_
#define CONTENT_PUBLIC_BROWSER_PRELOADING_TRIGGER_TYPE_H_
namespace content {
// If you add a new type of preloading trigger, please refer to the internal
// document go/update-prerender-new-trigger-metrics to make sure that metrics
// include the newly added trigger type. The string for the trigger type is
// generated in PrerenderPageLoadMetricsObserver::AppendSuffix.
// LINT.IfChange
enum class PreloadingTriggerType {
// https://wicg.github.io/nav-speculation/prerendering.html#speculation-rules
kSpeculationRule,
// Same as kSpeculationRule but triggered in isolated worlds like Extensions.
kSpeculationRuleFromIsolatedWorld,
// Same as kSpeculationRule but injected by the browser's auto speculation
// rules feature.
kSpeculationRuleFromAutoSpeculationRules,
// Trigger used by content embedders.
kEmbedder,
};
// LINT.ThenChange(//components/page_load_metrics/browser/observers/prerender_page_load_metrics_observer.cc)
} // namespace content
#endif // CONTENT_PUBLIC_BROWSER_PRELOADING_TRIGGER_TYPE_H_