replace OVERRIDE and FINAL with override and final in ash/

ash/wm/session_state_animator_impl.h

Index: ash/wm/session_state_animator_impl.h
diff --git a/ash/wm/session_state_animator_impl.h b/ash/wm/session_state_animator_impl.h
index bad7103164cccfc3a02d4158b9801353164abb83..d4792aa942fb5330437ee771c03681ff498168b5 100644
--- a/ash/wm/session_state_animator_impl.h
+++ b/ash/wm/session_state_animator_impl.h
@@ -52,17 +52,17 @@ class ASH_EXPORT SessionStateAnimatorImpl : public SessionStateAnimator {
   // ash::SessionStateAnimator:
   virtual void StartAnimation(int container_mask,
                               AnimationType type,
-                              AnimationSpeed speed) OVERRIDE;
+                              AnimationSpeed speed) override;
   virtual void StartAnimationWithCallback(
       int container_mask,
       AnimationType type,
       AnimationSpeed speed,
-      base::Closure callback) OVERRIDE;
+      base::Closure callback) override;
   virtual AnimationSequence* BeginAnimationSequence(
-      base::Closure callback) OVERRIDE;
-  virtual bool IsBackgroundHidden() const OVERRIDE;
-  virtual void ShowBackground() OVERRIDE;
-  virtual void HideBackground() OVERRIDE;
+      base::Closure callback) override;
+  virtual bool IsBackgroundHidden() const override;
+  virtual void ShowBackground() override;
+  virtual void HideBackground() override;
 
  private:
   class AnimationSequence;