C++11 override style change for athena

athena/screen_lock/chrome/chrome_screen_lock_manager.cc

 // Copyright 2014 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.
 
 #include "athena/input/public/accelerator_manager.h"
 #include "athena/input/public/input_manager.h"
 #include "athena/screen_lock/screen_lock_manager_base.h"
 #include "base/logging.h"
 #include "chrome/browser/chromeos/login/lock/screen_locker.h"
 
@@ skipping 10 matching lines @@
 
 class ChromeScreenLockManager : public ScreenLockManagerBase,
                                 public AcceleratorHandler,
                                 public PowerButtonObserver {
  public:
   ChromeScreenLockManager() {}
 
   void Init();
 
  protected:
-  virtual ~ChromeScreenLockManager();
+  ~ChromeScreenLockManager() override;
 
  private:
   // ScreenLockManager:
-  virtual void LockScreen() override;
+  void LockScreen() override;
 
   // AcceleratorHandler:
-  virtual bool IsCommandEnabled(int command_id) const override;
-  virtual bool OnAcceleratorFired(int command_id,
-                                  const ui::Accelerator& accelerator) override;
+  bool IsCommandEnabled(int command_id) const override;
+  bool OnAcceleratorFired(int command_id,
+                          const ui::Accelerator& accelerator) override;
 
   // PowerButtonObserver:
-  virtual void OnPowerButtonStateChanged(State state) override;
+  void OnPowerButtonStateChanged(State state) override;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeScreenLockManager);
 };
 
 ChromeScreenLockManager::~ChromeScreenLockManager() {
   InputManager::Get()->RemovePowerButtonObserver(this);
 }
 
 void ChromeScreenLockManager::Init() {
   AcceleratorManager::Get()->RegisterAccelerators(
@@ skipping 31 matching lines @@
 }  // namespace
 
 // static
 ScreenLockManager* ScreenLockManager::Create() {
   ChromeScreenLockManager* instance = new ChromeScreenLockManager();
   instance->Init();
   return instance;
 }
 
 }  // namespace athena