1// Copyright (c) 2012 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_EXTENSIONS_WINDOW_CONTROLLER_LIST_OBSERVER_H_ 6#define CHROME_BROWSER_EXTENSIONS_WINDOW_CONTROLLER_LIST_OBSERVER_H_ 7 8namespace extensions { 9 10class WindowController; 11 12// Implementations must not change the contents of the WindowControllerList 13// inside any of these methods. 14class WindowControllerListObserver { 15 public: 16 // Called immediately after a window controller is added to the list 17 virtual void OnWindowControllerAdded(WindowController* window_controller) {} 18 19 // Called immediately after a window controller is removed from the list 20 virtual void OnWindowControllerRemoved(WindowController* window_controller) {} 21 22 protected: 23 virtual ~WindowControllerListObserver() {} 24}; 25 26} // namespace extensions 27 28#endif // CHROME_BROWSER_EXTENSIONS_WINDOW_CONTROLLER_LIST_OBSERVER_H_ 29