replace OVERRIDE and FINAL with override and final in cc/

cc/animation/scrollbar_animation_controller_thinning_unittest.cc

Index: cc/animation/scrollbar_animation_controller_thinning_unittest.cc
diff --git a/cc/animation/scrollbar_animation_controller_thinning_unittest.cc b/cc/animation/scrollbar_animation_controller_thinning_unittest.cc
index 6dad5b06a2fcb3f686371f4af016b5858343810f..2b53fdc77af73b57c9ed74362c58e0aa02dbf2ee 100644
--- a/cc/animation/scrollbar_animation_controller_thinning_unittest.cc
+++ b/cc/animation/scrollbar_animation_controller_thinning_unittest.cc
@@ -21,10 +21,10 @@ class ScrollbarAnimationControllerThinningTest
       : host_impl_(&proxy_, &shared_bitmap_manager_) {}
 
   virtual void PostDelayedScrollbarFade(const base::Closure& start_fade,
-                                        base::TimeDelta delay) OVERRIDE {
+                                        base::TimeDelta delay) override {
     start_fade_ = start_fade;
   }
-  virtual void SetNeedsScrollbarAnimationFrame() OVERRIDE {}
+  virtual void SetNeedsScrollbarAnimationFrame() override {}
 
  protected:
   virtual void SetUp() {