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 ASH_DESKTOP_BACKGROUND_DESKTOP_BACKGROUND_CONTROLLER_OBSERVER_H_ 6 #define ASH_DESKTOP_BACKGROUND_DESKTOP_BACKGROUND_CONTROLLER_OBSERVER_H_ 7 8 #include "ash/ash_export.h" 9 10 namespace ash { 11 12 class ASH_EXPORT DesktopBackgroundControllerObserver { 13 public: 14 // Invoked when the wallpaper data is changed. 15 virtual void OnWallpaperDataChanged() = 0; 16 17 protected: 18 virtual ~DesktopBackgroundControllerObserver() {} 19 }; 20 21 } // namespace ash 22 23 #endif // ASH_DESKTOP_BACKGROUND_DESKTOP_BACKGROUND_CONTROLLER_OBSERVER_H_ 24
