1// Copyright (c) 2013 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_CHROMEOS_DISPLAY_DISPLAY_CONFIGURATION_OBSERVER_H_
6#define CHROME_BROWSER_CHROMEOS_DISPLAY_DISPLAY_CONFIGURATION_OBSERVER_H_
7
8#include "ash/display/display_controller.h"
9#include "base/basictypes.h"
10#include "base/compiler_specific.h"
11
12namespace chromeos {
13
14// DisplayConfigurationObserver observes and saves
15// the change of display configurations.
16class DisplayConfigurationObserver : public ash::DisplayController::Observer {
17 public:
18  DisplayConfigurationObserver();
19  virtual ~DisplayConfigurationObserver();
20
21 protected:
22  // ash::DisplayController::Observer overrides:
23  virtual void OnDisplaysInitialized() OVERRIDE;
24  virtual void OnDisplayConfigurationChanged() OVERRIDE;
25
26  DISALLOW_COPY_AND_ASSIGN(DisplayConfigurationObserver);
27};
28
29}  // namespace chromeos
30
31#endif  // CHROME_BROWSER_CHROMEOS_DISPLAY_DISPLAY_CONFIGURATION_OBSERVER_H_
32