Standardize usage of virtual/override/final specifiers.

ash/wm/lock_state_controller.h

 // Copyright 2013 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 ASH_WM_LOCK_STATE_CONTROLLER_H_
 #define ASH_WM_LOCK_STATE_CONTROLLER_H_
 
 #include "ash/ash_export.h"
 #include "ash/shell_observer.h"
 #include "ash/wm/lock_state_observer.h"
@@ skipping 125 matching lines @@
       controller_->real_shutdown_timer_.Stop();
     }
 
    private:
     LockStateController* controller_;  // not owned
 
     DISALLOW_COPY_AND_ASSIGN(TestApi);
   };
 
   LockStateController();
-  virtual ~LockStateController();
+  ~LockStateController() override;
 
   void SetDelegate(scoped_ptr<LockStateControllerDelegate> delegate);
 
   void AddObserver(LockStateObserver* observer);
   void RemoveObserver(LockStateObserver* observer);
   bool HasObserver(LockStateObserver* observer);
 
   // Starts locking (with slow animation) that can be cancelled.
   // After locking and |kLockToShutdownTimeoutMs| StartShutdownAnimation()
   // will be called unless CancelShutdownAnimation() is called, if
@@ skipping 36 matching lines @@
   // Called when ScreenLocker is ready to close, but not yet destroyed.
   // Can be used to display "hiding" animations on unlock.
   // |callback| will be called when all animations are done.
   void OnLockScreenHide(base::Closure& callback);
 
   // Sets up the callback that should be called once lock animation is finished.
   // Callback is guaranteed to be called once and then discarded.
   void SetLockScreenDisplayedCallback(const base::Closure& callback);
 
   // aura::WindowTreeHostObserver override:
-  virtual void OnHostCloseRequested(const aura::WindowTreeHost* host) override;
+  void OnHostCloseRequested(const aura::WindowTreeHost* host) override;
 
   // ShellObserver overrides:
-  virtual void OnLoginStateChanged(user::LoginStatus status) override;
-  virtual void OnAppTerminating() override;
-  virtual void OnLockStateChanged(bool locked) override;
+  void OnLoginStateChanged(user::LoginStatus status) override;
+  void OnAppTerminating() override;
+  void OnLockStateChanged(bool locked) override;
 
   void set_animator_for_test(SessionStateAnimator* animator) {
     animator_.reset(animator);
   }
 
  private:
   friend class test::PowerButtonControllerTest;
   friend class test::LockStateControllerTest;
 
   struct UnlockedStateProperties {
@@ skipping 107 matching lines @@
   base::Closure lock_screen_displayed_callback_;
 
   base::WeakPtrFactory<LockStateController> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(LockStateController);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_LOCK_STATE_CONTROLLER_H_