replace OVERRIDE and FINAL with override and final in ash/

ash/drag_drop/drag_drop_controller.h

Index: ash/drag_drop/drag_drop_controller.h
diff --git a/ash/drag_drop/drag_drop_controller.h b/ash/drag_drop/drag_drop_controller.h
index 7f20401b25127bd58b49bed82aa5a643c4682b15..fba69372e682b98439c5528d57abd83ab1663b4d 100644
--- a/ash/drag_drop/drag_drop_controller.h
+++ b/ash/drag_drop/drag_drop_controller.h
@@ -49,22 +49,22 @@ class ASH_EXPORT DragDropController
       aura::Window* source_window,
       const gfx::Point& root_location,
       int operation,
-      ui::DragDropTypes::DragEventSource source) OVERRIDE;
+      ui::DragDropTypes::DragEventSource source) override;
   virtual void DragUpdate(aura::Window* target,
-                          const ui::LocatedEvent& event) OVERRIDE;
+                          const ui::LocatedEvent& event) override;
   virtual void Drop(aura::Window* target,
-                    const ui::LocatedEvent& event) OVERRIDE;
-  virtual void DragCancel() OVERRIDE;
-  virtual bool IsDragDropInProgress() OVERRIDE;
+                    const ui::LocatedEvent& event) override;
+  virtual void DragCancel() override;
+  virtual bool IsDragDropInProgress() override;
 
   // Overridden from ui::EventHandler:
-  virtual void OnKeyEvent(ui::KeyEvent* event) OVERRIDE;
-  virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE;
-  virtual void OnTouchEvent(ui::TouchEvent* event) OVERRIDE;
-  virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
+  virtual void OnKeyEvent(ui::KeyEvent* event) override;
+  virtual void OnMouseEvent(ui::MouseEvent* event) override;
+  virtual void OnTouchEvent(ui::TouchEvent* event) override;
+  virtual void OnGestureEvent(ui::GestureEvent* event) override;
 
   // Overridden from aura::WindowObserver.
-  virtual void OnWindowDestroyed(aura::Window* window) OVERRIDE;
+  virtual void OnWindowDestroyed(aura::Window* window) override;
 
  protected:
   // Helper method to create a LinearAnimation object that will run the drag
@@ -82,9 +82,9 @@ class ASH_EXPORT DragDropController
   friend class ash::test::DragDropControllerTest;
 
   // Overridden from gfx::AnimationDelegate:
-  virtual void AnimationEnded(const gfx::Animation* animation) OVERRIDE;
-  virtual void AnimationProgressed(const gfx::Animation* animation) OVERRIDE;
-  virtual void AnimationCanceled(const gfx::Animation* animation) OVERRIDE;
+  virtual void AnimationEnded(const gfx::Animation* animation) override;
+  virtual void AnimationProgressed(const gfx::Animation* animation) override;
+  virtual void AnimationCanceled(const gfx::Animation* animation) override;
 
   // Helper method to start drag widget flying back animation.
   void StartCanceledAnimation(int animation_duration_ms);