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// Copyright (c) 2012 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 ASH_DESKTOP_BACKGROUND_DESKTOP_BACKGROUND_CONTROLLER_OBSERVER_H_
#define ASH_DESKTOP_BACKGROUND_DESKTOP_BACKGROUND_CONTROLLER_OBSERVER_H_
#include "ash/ash_export.h"
namespace ash {
class ASH_EXPORT DesktopBackgroundControllerObserver {
public:
// Invoked when the wallpaper data is changed.
virtual void OnWallpaperDataChanged() = 0;
protected:
virtual ~DesktopBackgroundControllerObserver() {}
};
} // namespace ash
#endif // ASH_DESKTOP_BACKGROUND_DESKTOP_BACKGROUND_CONTROLLER_OBSERVER_H_
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