CC: Support fractional iteration count on compositor animations

content/renderer/compositor_bindings/web_animation_impl.h

Index: content/renderer/compositor_bindings/web_animation_impl.h
diff --git a/content/renderer/compositor_bindings/web_animation_impl.h b/content/renderer/compositor_bindings/web_animation_impl.h
index a706358ae36d966a4c7bdb7ee70de0114471d352..0758df14c6eebe00182882364ffc9e01353384f3 100644
--- a/content/renderer/compositor_bindings/web_animation_impl.h
+++ b/content/renderer/compositor_bindings/web_animation_impl.h
@@ -31,8 +31,13 @@ class WebAnimationImpl : public blink::WebAnimation {
   // blink::WebAnimation 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;