Revert 168224 - Update V8 to version 3.15.4.
[chromium-blink-merge.git] / chrome / browser / chromeos / power / output_observer.h
bloba9b80f2d0a76a56b351ebf8e9faca8dfe43f72fe
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.
5 #ifndef CHROME_BROWSER_CHROMEOS_POWER_OUTPUT_OBSERVER_H_
6 #define CHROME_BROWSER_CHROMEOS_POWER_OUTPUT_OBSERVER_H_
8 #include "base/basictypes.h"
9 #include "base/compiler_specific.h"
10 #include "chromeos/dbus/power_manager_client.h"
12 namespace chromeos {
14 // This observer listens for when video outputs have been turned off so that the
15 // corresponding CRTCs can be disabled to force the connected output off.
16 class OutputObserver : public PowerManagerClient::Observer {
17 public:
18 // This class registers/unregisters itself as an observer in ctor/dtor.
19 OutputObserver();
20 virtual ~OutputObserver();
22 private:
23 // PowerManagerClient::Observer implementation.
24 virtual void ScreenPowerSet(bool power_on, bool all_displays) OVERRIDE;
26 DISALLOW_COPY_AND_ASSIGN(OutputObserver);
29 } // namespace chromeos
31 #endif // CHROME_BROWSER_CHROMEOS_POWER_OUTPUT_OBSERVER_H_