replace OVERRIDE and FINAL with override and final in cc/

cc/layers/picture_image_layer.h

Index: cc/layers/picture_image_layer.h
diff --git a/cc/layers/picture_image_layer.h b/cc/layers/picture_image_layer.h
index c0c0c842f30977b4702534f00a9f4dcfdbeae2a0..6f73b4262c4d4d8339292c40d8765ffa2223071a 100644
--- a/cc/layers/picture_image_layer.h
+++ b/cc/layers/picture_image_layer.h
@@ -21,18 +21,18 @@ class CC_EXPORT PictureImageLayer : public PictureLayer, ContentLayerClient {
 
   // Layer implementation.
   virtual scoped_ptr<LayerImpl> CreateLayerImpl(
-      LayerTreeImpl* tree_impl) OVERRIDE;
+      LayerTreeImpl* tree_impl) override;
 
   // ContentLayerClient implementation.
   virtual void PaintContents(
       SkCanvas* canvas,
       const gfx::Rect& clip,
-      ContentLayerClient::GraphicsContextStatus gc_status) OVERRIDE;
-  virtual void DidChangeLayerCanUseLCDText() OVERRIDE {}
-  virtual bool FillsBoundsCompletely() const OVERRIDE;
+      ContentLayerClient::GraphicsContextStatus gc_status) override;
+  virtual void DidChangeLayerCanUseLCDText() override {}
+  virtual bool FillsBoundsCompletely() const override;
 
  protected:
-  virtual bool HasDrawableContent() const OVERRIDE;
+  virtual bool HasDrawableContent() const override;
 
  private:
   PictureImageLayer();