chromium/ui/aura/window_observer.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_AURA_WINDOW_OBSERVER_H_
#define UI_AURA_WINDOW_OBSERVER_H_

#include "base/memory/raw_ptr.h"
#include "base/observer_list_types.h"
#include "ui/aura/aura_export.h"
#include "ui/compositor/property_change_reason.h"

namespace gfx {
class Rect;
class Transform;
}  // namespace gfx

namespace aura {

class Window;

class AURA_EXPORT WindowObserver : public base::CheckedObserver {};

}  // namespace aura

#endif  // UI_AURA_WINDOW_OBSERVER_H_