// Copyright (c) 2010 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 CHROME_BROWSER_SESSIONS_TAB_RESTORE_SERVICE_OBSERVER_H_ #define CHROME_BROWSER_SESSIONS_TAB_RESTORE_SERVICE_OBSERVER_H_ class TabRestoreService; // Observer is notified when the set of entries managed by TabRestoreService // changes in some way. class TabRestoreServiceObserver { public: // Sent when the set of entries changes in some way. virtual void TabRestoreServiceChanged(TabRestoreService* service) = 0; // Sent to all remaining Observers when TabRestoreService's // destructor is run. virtual void TabRestoreServiceDestroyed(TabRestoreService* service) = 0; // Sent when TabRestoreService finishes loading. virtual void TabRestoreServiceLoaded(TabRestoreService* service) {} protected: virtual ~TabRestoreServiceObserver() {} }; #endif // CHROME_BROWSER_SESSIONS_TAB_RESTORE_SERVICE_OBSERVER_H_