chromium/third_party/blink/renderer/modules/storage/cached_storage_area.h

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_STORAGE_CACHED_STORAGE_AREA_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_STORAGE_CACHED_STORAGE_AREA_H_

#include "base/memory/weak_ptr.h"
#include "base/trace_event/memory_dump_provider.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "third_party/blink/public/mojom/dom_storage/storage_area.mojom-blink.h"
#include "third_party/blink/public/platform/scheduler/web_scoped_virtual_time_pauser.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/modules/storage/storage_area_map.h"
#include "third_party/blink/renderer/modules/storage/storage_namespace.h"
#include "third_party/blink/renderer/platform/heap/persistent.h"
#include "third_party/blink/renderer/platform/storage/blink_storage_key.h"
#include "third_party/blink/renderer/platform/wtf/deque.h"
#include "third_party/blink/renderer/platform/wtf/hash_map.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"

namespace blink {

class LocalDOMWindow;

// An in-process implementation of LocalStorage using a LevelDB Mojo service.
// Maintains a complete cache of the BlinkStorageKey's Map of key/value pairs
// for fast access. The cache is primed on first access and changes are written
// to the backend through the level db interface pointer. Mutations originating
// in other processes are applied to the cache via mojom::LevelDBObserver
// callbacks.
// There is one CachedStorageArea for potentially many LocalStorageArea
// objects.
class MODULES_EXPORT CachedStorageArea
    : public mojom::blink::StorageAreaObserver,
      public RefCounted<CachedStorageArea>,
      public base::trace_event::MemoryDumpProvider { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_STORAGE_CACHED_STORAGE_AREA_H_