chrome/browser/sessions/tab_restore_service_observer.h

   1 // Copyright (c) 2010 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 CHROME_BROWSER_SESSIONS_TAB_RESTORE_SERVICE_OBSERVER_H_
   6 #define CHROME_BROWSER_SESSIONS_TAB_RESTORE_SERVICE_OBSERVER_H_
   7
   8 class TabRestoreService;
   9
  10 // Observer is notified when the set of entries managed by TabRestoreService
  11 // changes in some way.
  12 class TabRestoreServiceObserver {
  13  public:
  14   // Sent when the set of entries changes in some way.
  15   virtual void TabRestoreServiceChanged(TabRestoreService* service) = 0;
  16
  17   // Sent to all remaining Observers when TabRestoreService's
  18   // destructor is run.
  19   virtual void TabRestoreServiceDestroyed(TabRestoreService* service) = 0;
  20
  21   // Sent when TabRestoreService finishes loading.
  22   virtual void TabRestoreServiceLoaded(TabRestoreService* service) {}
  23
  24  protected:
  25   virtual ~TabRestoreServiceObserver() {}
  26 };
  27
  28 #endif  // CHROME_BROWSER_SESSIONS_TAB_RESTORE_SERVICE_OBSERVER_H_