replace OVERRIDE and FINAL with override and final in chrome/browser/chromeos/

chrome/browser/chromeos/power/power_button_observer.h

 // 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_POWER_POWER_BUTTON_OBSERVER_H_
 #define CHROME_BROWSER_CHROMEOS_POWER_POWER_BUTTON_OBSERVER_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "chromeos/dbus/power_manager_client.h"
@@ skipping 10 matching lines @@
                             public SessionManagerClient::Observer {
  public:
   // This class registers/unregisters itself as an observer in ctor/dtor.
   PowerButtonObserver();
   virtual ~PowerButtonObserver();
 
  private:
   // content::NotificationObserver implementation:
   virtual void Observe(int type,
                        const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
+                       const content::NotificationDetails& details) override;
 
   // PowerManagerObserver implementation:
   virtual void PowerButtonEventReceived(
-      bool down, const base::TimeTicks& timestamp) OVERRIDE;
+      bool down, const base::TimeTicks& timestamp) override;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(PowerButtonObserver);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_POWER_POWER_BUTTON_OBSERVER_H_