Standardize usage of virtual/override/final specifiers.

ui/views/controls/slider.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 UI_VIEWS_CONTROLS_SLIDER_H_
 #define UI_VIEWS_CONTROLS_SLIDER_H_
 
 #include "ui/gfx/animation/animation_delegate.h"
 #include "ui/views/view.h"
 #include "ui/views/views_export.h"
@@ skipping 35 matching lines @@
 };
 
 class VIEWS_EXPORT Slider : public View, public gfx::AnimationDelegate {
  public:
   enum Orientation {
     HORIZONTAL,
     VERTICAL
   };
 
   Slider(SliderListener* listener, Orientation orientation);
-  virtual ~Slider();
+  ~Slider() override;
 
   float value() const { return value_; }
   void SetValue(float value);
 
   // Set the delta used for changing the value via keyboard.
   void SetKeyboardIncrement(float increment);
 
   void SetAccessibleName(const base::string16& name);
 
   void set_enable_accessibility_events(bool enabled) {
@@ skipping 20 matching lines @@
 
   void OnPaintFocus(gfx::Canvas* canvas);
 
   // Notify the listener_, if not NULL, that dragging started.
   void OnSliderDragStarted();
 
   // Notify the listener_, if not NULL, that dragging ended.
   void OnSliderDragEnded();
 
   // views::View overrides:
-  virtual gfx::Size GetPreferredSize() const override;
-  virtual void OnPaint(gfx::Canvas* canvas) override;
-  virtual bool OnMousePressed(const ui::MouseEvent& event) override;
-  virtual bool OnMouseDragged(const ui::MouseEvent& event) override;
-  virtual void OnMouseReleased(const ui::MouseEvent& event) override;
-  virtual bool OnKeyPressed(const ui::KeyEvent& event) override;
-  virtual void GetAccessibleState(ui::AXViewState* state) override;
-  virtual void OnFocus() override;
-  virtual void OnBlur() override;
+  gfx::Size GetPreferredSize() const override;
+  void OnPaint(gfx::Canvas* canvas) override;
+  bool OnMousePressed(const ui::MouseEvent& event) override;
+  bool OnMouseDragged(const ui::MouseEvent& event) override;
+  void OnMouseReleased(const ui::MouseEvent& event) override;
+  bool OnKeyPressed(const ui::KeyEvent& event) override;
+  void GetAccessibleState(ui::AXViewState* state) override;
+  void OnFocus() override;
+  void OnBlur() override;
 
   // ui::EventHandler overrides:
-  virtual void OnGestureEvent(ui::GestureEvent* event) override;
+  void OnGestureEvent(ui::GestureEvent* event) override;
 
   // gfx::AnimationDelegate overrides:
-  virtual void AnimationProgressed(const gfx::Animation* animation) override;
+  void AnimationProgressed(const gfx::Animation* animation) override;
 
   void set_listener(SliderListener* listener) {
     listener_ = listener;
   }
 
   SliderListener* listener_;
   Orientation orientation_;
 
   scoped_ptr<gfx::SlideAnimation> move_animation_;
 
@@ skipping 14 matching lines @@
   const gfx::ImageSkia* thumb_;
   const gfx::ImageSkia* images_[4];
   int bar_height_;
 
   DISALLOW_COPY_AND_ASSIGN(Slider);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_SLIDER_H_