Standardize usage of virtual/override/final specifiers.

ash/touch/touch_hud_debug.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_TOUCH_TOUCH_HUD_DEBUG_H_
 #define ASH_TOUCH_TOUCH_HUD_DEBUG_H_
 
 #include <map>
 
 #include "ash/ash_export.h"
@@ skipping 31 matching lines @@
   // cycles between a fixed number of display modes.
   void ChangeToNextMode();
 
   // Returns log of touch events as a list value. Each item in the list is a
   // trace of one touch point.
   scoped_ptr<base::ListValue> GetLogAsList() const;
 
   Mode mode() const { return mode_; }
 
   // Overriden from TouchObserverHUD.
-  virtual void Clear() override;
+  void Clear() override;
 
  private:
-  virtual ~TouchHudDebug();
+  ~TouchHudDebug() override;
 
   void SetMode(Mode mode);
 
   void UpdateTouchPointLabel(int index);
 
   // Overriden from TouchObserverHUD.
-  virtual void OnTouchEvent(ui::TouchEvent* event) override;
-  virtual void OnDisplayMetricsChanged(const gfx::Display& display,
-                                       uint32_t metrics) override;
-  virtual void SetHudForRootWindowController(
-      RootWindowController* controller) override;
-  virtual void UnsetHudForRootWindowController(
+  void OnTouchEvent(ui::TouchEvent* event) override;
+  void OnDisplayMetricsChanged(const gfx::Display& display,
+                               uint32_t metrics) override;
+  void SetHudForRootWindowController(RootWindowController* controller) override;
+  void UnsetHudForRootWindowController(
       RootWindowController* controller) override;
 
   static const int kMaxTouchPoints = 32;
 
   Mode mode_;
 
   scoped_ptr<TouchLog> touch_log_;
 
   TouchHudCanvas* canvas_;
   views::View* label_container_;
   views::Label* touch_labels_[kMaxTouchPoints];
 
   DISALLOW_COPY_AND_ASSIGN(TouchHudDebug);
 };
 
 }  // namespace ash
 
 #endif  // ASH_TOUCH_TOUCH_HUD_DEBUG_H_