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content / public / browser / dom_storage_context.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_DOM_STORAGE_CONTEXT_H_
#define CONTENT_PUBLIC_BROWSER_DOM_STORAGE_CONTEXT_H_
#include <string>
#include <vector>
#include "base/functional/callback.h"
namespace blink {
class StorageKey;
} // namespace blink
namespace content {
struct StorageUsageInfo;
class SessionStorageNamespace;
struct SessionStorageUsageInfo;
// Access point for the per-BrowserContext Local Storage and Session Storage
// data.
class DOMStorageContext {
public:
using GetLocalStorageUsageCallback =
base::OnceCallback<void(const std::vector<StorageUsageInfo>&)>;
// Returns a collection of StorageKeys using local storage to the given
// callback.
virtual void GetLocalStorageUsage(GetLocalStorageUsageCallback callback) = 0;
// Deletes the local storage for `storage_key`. `callback` is called when the
// deletion is sent to the database and GetLocalStorageUsage() will not return
// entries for `storage_key` anymore.
virtual void DeleteLocalStorage(const blink::StorageKey& storage_key,
base::OnceClosure callback) = 0;
// Deletes the session storage data identified by `usage_info`.
virtual void DeleteSessionStorage(const SessionStorageUsageInfo& usage_info,
base::OnceClosure callback) = 0;
// Creates a SessionStorageNamespace with the given `namespace_id`. Used
// after tabs are restored by session restore. When created, the
// SessionStorageNamespace with the correct `namespace_id` will be
// associated with the persisted sessionStorage data.
virtual scoped_refptr<SessionStorageNamespace> RecreateSessionStorage(
const std::string& namespace_id) = 0;
// Starts deleting sessionStorages which don't have an associated
// SessionStorageNamespace alive. Called when SessionStorageNamespaces have
// been created after a session restore, or a session restore won't happen.
virtual void StartScavengingUnusedSessionStorage() = 0;
protected:
virtual ~DOMStorageContext() {}
};
} // namespace content
#endif // CONTENT_PUBLIC_BROWSER_DOM_STORAGE_CONTEXT_H_