ui/app_list/search/history_data_observer.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_APP_LIST_SEARCH_HISTORY_DATA_OBSERVER_H_
   6 #define UI_APP_LIST_SEARCH_HISTORY_DATA_OBSERVER_H_
   7
   8 #include "ui/app_list/app_list_export.h"
   9
  10 namespace app_list {
  11
  12 class APP_LIST_EXPORT HistoryDataObserver {
  13  public:
  14   // Invoked when the data is loaded from underlying store.
  15   virtual void OnHistoryDataLoadedFromStore() = 0;
  16
  17  protected:
  18   virtual ~HistoryDataObserver() {}
  19 };
  20
  21 }  // namespace app_list
  22
  23 #endif  // UI_APP_LIST_SEARCH_HISTORY_DATA_OBSERVER_H_