storage/browser/database/database_quota_client.h

// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef STORAGE_BROWSER_DATABASE_DATABASE_QUOTA_CLIENT_H_
#define STORAGE_BROWSER_DATABASE_DATABASE_QUOTA_CLIENT_H_

#include <set>
#include <string>

#include "base/component_export.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/single_thread_task_runner.h"
#include "storage/browser/quota/quota_client.h"
#include "third_party/blink/public/mojom/quota/quota_types.mojom.h"
#include "url/origin.h"

namespace storage {

class DatabaseTracker;

// A QuotaClient implementation to integrate WebSQLDatabases
// with the quota  management system. This interface is used
// on the IO thread by the quota manager.
class COMPONENT_EXPORT(STORAGE_BROWSER) DatabaseQuotaClient
    : public storage::QuotaClient {
 public:
  DatabaseQuotaClient(scoped_refptr<DatabaseTracker> tracker);
  ~DatabaseQuotaClient() override;

  // QuotaClient method overrides
  ID id() const override;
  void OnQuotaManagerDestroyed() override;
  void GetOriginUsage(const url::Origin& origin,
                      blink::mojom::StorageType type,
                      GetUsageCallback callback) override;
  void GetOriginsForType(blink::mojom::StorageType type,
                         GetOriginsCallback callback) override;
  void GetOriginsForHost(blink::mojom::StorageType type,
                         const std::string& host,
                         GetOriginsCallback callback) override;
  void DeleteOriginData(const url::Origin& origin,
                        blink::mojom::StorageType type,
                        DeletionCallback callback) override;
  bool DoesSupport(blink::mojom::StorageType type) const override;

 private:
  scoped_refptr<DatabaseTracker> db_tracker_;  // only used on its sequence

  DISALLOW_COPY_AND_ASSIGN(DatabaseQuotaClient);
};

}  // namespace storage

#endif  // STORAGE_BROWSER_DATABASE_DATABASE_QUOTA_CLIENT_H_