chromium/components/history/core/browser/history_db_task.h

// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_HISTORY_CORE_BROWSER_HISTORY_DB_TASK_H_
#define COMPONENTS_HISTORY_CORE_BROWSER_HISTORY_DB_TASK_H_

namespace history {

class HistoryBackend;
class HistoryDatabase;

// HistoryDBTask can be used to process arbitrary work on the history backend
// thread. HistoryDBTask is scheduled using HistoryService::ScheduleDBTask.
// When HistoryBackend processes the task it invokes RunOnDBThread. Once the
// task completes and has not been canceled, DoneRunOnMainThread is invoked back
// on the main thread, after which this object is destroyed, also on the
// main thread.
class HistoryDBTask { … };

}  // namespace history

#endif  // COMPONENTS_HISTORY_CORE_BROWSER_HISTORY_DB_TASK_H_