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// Copyright (c) 2011 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 UI_AURA_WINDOW_OBSERVER_H_
#define UI_AURA_WINDOW_OBSERVER_H_
#pragma once
#include "ui/aura/aura_export.h"
namespace aura {
class Window;
class AURA_EXPORT WindowObserver {
public:
// Invoked when the Window |new_window| has been added.
virtual void OnWindowAdded(Window* new_window) {}
// Invoked prior to removing |window|.
virtual void OnWillRemoveWindow(Window* window) {}
protected:
virtual ~WindowObserver() {}
};
} // namespace aura
#endif // UI_AURA_WINDOW_OBSERVER_H_
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