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

// Copyright 2014 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_SERVICE_OBSERVER_H_
#define COMPONENTS_HISTORY_CORE_BROWSER_HISTORY_SERVICE_OBSERVER_H_

#include "components/history/core/browser/history_types.h"
#include "components/history/core/browser/keyword_id.h"

namespace history {

class HistoryService;

// Used by components external to History to observe `HistoryService` and
// process tasks on the main thread.
//
// The notifications roughly correspond to the ones in `HistoryBackendObserver`,
// although there are some differences.
class HistoryServiceObserver { … };

}  // namespace history

#endif  // COMPONENTS_HISTORY_CORE_BROWSER_HISTORY_SERVICE_OBSERVER_H_