chromeos: Implement power button animations for Aura.

chrome/browser/chromeos/chrome_browser_main_chromeos.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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 CHROME_BROWSER_CHROMEOS_CHROME_BROWSER_MAIN_CHROMEOS_H_
 #define CHROME_BROWSER_CHROMEOS_CHROME_BROWSER_MAIN_CHROMEOS_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/chrome_browser_main_linux.h"
 
 namespace chromeos {
 class BrightnessObserver;
 class SessionManagerObserver;
 
 #if defined(USE_AURA)
 class InitialBrowserWindowObserver;
+class PowerButtonObserver;
 #endif
 }  // namespace chromeos
 
 class ChromeBrowserMainPartsChromeos : public ChromeBrowserMainPartsLinux {
  public:
   explicit ChromeBrowserMainPartsChromeos(
       const content::MainFunctionParams& parameters);
   virtual ~ChromeBrowserMainPartsChromeos();
 
   // content::BrowserMainParts overrides.
   virtual void PreEarlyInitialization() OVERRIDE;
   virtual void PreMainMessageLoopStart() OVERRIDE;
   virtual void PostMainMessageLoopStart() OVERRIDE;
   virtual void PostMainMessageLoopRun() OVERRIDE;
 
   // ChromeBrowserMainExtraParts overrodes.
   virtual void PreProfileInit() OVERRIDE;
   virtual void PostProfileInit() OVERRIDE;
   virtual void PreBrowserStart() OVERRIDE;
   virtual void PostBrowserStart() OVERRIDE;
 
  private:
   scoped_ptr<chromeos::BrightnessObserver> brightness_observer_;
   scoped_ptr<chromeos::SessionManagerObserver> session_manager_observer_;
 
 #if defined(USE_AURA)
   scoped_ptr<chromeos::InitialBrowserWindowObserver>
       initial_browser_window_observer_;
+  scoped_ptr<chromeos::PowerButtonObserver> power_button_observer_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserMainPartsChromeos);
 };
 
 #endif  // CHROME_BROWSER_CHROMEOS_CHROME_BROWSER_MAIN_CHROMEOS_H_