Standardize usage of virtual/override/final in ui/

ui/views/view.h

Index: ui/views/view.h
diff --git a/ui/views/view.h b/ui/views/view.h
index 5ae0c025b1efe0123ff731183817698fce027c0f..a38f3ce3fd8090fd01eefa9549806a01f30da62d 100644
--- a/ui/views/view.h
+++ b/ui/views/view.h
@@ -145,7 +145,7 @@ class VIEWS_EXPORT View : public ui::LayerDelegate,
   // Creation and lifetime -----------------------------------------------------
 
   View();
-  virtual ~View();
+  ~View() override;
 
   // By default a View is owned by its parent unless specified otherwise here.
   void set_owned_by_client() { owned_by_client_ = true; }
@@ -714,19 +714,19 @@ class VIEWS_EXPORT View : public ui::LayerDelegate,
   ViewTargeter* targeter() const { return targeter_.get(); }
 
   // Overridden from ui::EventTarget:
-  virtual bool CanAcceptEvent(const ui::Event& event) override;
-  virtual ui::EventTarget* GetParentTarget() override;
-  virtual scoped_ptr<ui::EventTargetIterator> GetChildIterator() const override;
-  virtual ui::EventTargeter* GetEventTargeter() override;
-  virtual void ConvertEventToTarget(ui::EventTarget* target,
-                                    ui::LocatedEvent* event) override;
+  bool CanAcceptEvent(const ui::Event& event) override;
+  ui::EventTarget* GetParentTarget() override;
+  scoped_ptr<ui::EventTargetIterator> GetChildIterator() const override;
+  ui::EventTargeter* GetEventTargeter() override;
+  void ConvertEventToTarget(ui::EventTarget* target,
+                            ui::LocatedEvent* event) override;
 
   // Overridden from ui::EventHandler:
-  virtual void OnKeyEvent(ui::KeyEvent* event) override;
-  virtual void OnMouseEvent(ui::MouseEvent* event) override;
-  virtual void OnScrollEvent(ui::ScrollEvent* event) override;
-  virtual void OnTouchEvent(ui::TouchEvent* event) override final;
-  virtual void OnGestureEvent(ui::GestureEvent* event) override;
+  void OnKeyEvent(ui::KeyEvent* event) override;
+  void OnMouseEvent(ui::MouseEvent* event) override;
+  void OnScrollEvent(ui::ScrollEvent* event) override;
+  void OnTouchEvent(ui::TouchEvent* event) final;
+  void OnGestureEvent(ui::GestureEvent* event) override;
 
   // Accelerators --------------------------------------------------------------
 
@@ -744,12 +744,12 @@ class VIEWS_EXPORT View : public ui::LayerDelegate,
   virtual void ResetAccelerators();
 
   // Overridden from AcceleratorTarget:
-  virtual bool AcceleratorPressed(const ui::Accelerator& accelerator) override;
+  bool AcceleratorPressed(const ui::Accelerator& accelerator) override;
 
   // Returns whether accelerators are enabled for this view. Accelerators are
   // enabled if the containing widget is visible and the view is enabled() and
   // IsDrawn()
-  virtual bool CanHandleAccelerators() const override;
+  bool CanHandleAccelerators() const override;
 
   // Focus ---------------------------------------------------------------------
 
@@ -1117,11 +1117,10 @@ class VIEWS_EXPORT View : public ui::LayerDelegate,
   void UpdateChildLayerBounds(const gfx::Vector2d& offset);
 
   // Overridden from ui::LayerDelegate:
-  virtual void OnPaintLayer(gfx::Canvas* canvas) override;
-  virtual void OnDelegatedFrameDamage(
-      const gfx::Rect& damage_rect_in_dip) override;
-  virtual void OnDeviceScaleFactorChanged(float device_scale_factor) override;
-  virtual base::Closure PrepareForLayerBoundsChange() override;
+  void OnPaintLayer(gfx::Canvas* canvas) override;
+  void OnDelegatedFrameDamage(const gfx::Rect& damage_rect_in_dip) override;
+  void OnDeviceScaleFactorChanged(float device_scale_factor) override;
+  base::Closure PrepareForLayerBoundsChange() override;
 
   // Finds the layer that this view paints to (it may belong to an ancestor
   // view), then reorders the immediate children of that layer to match the