CC: Add fill mode to compositor animations

cc/blink/web_animation_impl.h

Index: cc/blink/web_animation_impl.h
diff --git a/cc/blink/web_animation_impl.h b/cc/blink/web_animation_impl.h
index f2b2f07f78427ce825961fe7bc765851819f4960..fcf992b87fa682c93b99675b8b7a0e2ef9e9eb1d 100644
--- a/cc/blink/web_animation_impl.h
+++ b/cc/blink/web_animation_impl.h
@@ -31,13 +31,8 @@ class WebCompositorAnimationImpl : public blink::WebCompositorAnimation {
   // blink::WebCompositorAnimation implementation
   virtual int id();
   virtual TargetProperty targetProperty() const;
-#if WEB_ANIMATION_SUPPORTS_FRACTIONAL_ITERATIONS
   virtual double iterations() const;
   virtual void setIterations(double iterations);
-#else
-  virtual int iterations() const;
-  virtual void setIterations(int iterations);
-#endif
   virtual double startTime() const;
   virtual void setStartTime(double monotonic_time);
   virtual double timeOffset() const;
@@ -46,7 +41,10 @@ class WebCompositorAnimationImpl : public blink::WebCompositorAnimation {
   virtual void setDirection(Direction);
   virtual double playbackRate() const;
   virtual void setPlaybackRate(double playback_rate);
-
+#if WEB_ANIMATION_SUPPORTS_FILL_MODE
+  virtual FillMode fillMode() const;
+  virtual void setFillMode(blink::WebCompositorAnimation::FillMode fill_mode);
+#endif
   scoped_ptr<cc::Animation> PassAnimation();
 
  private: