CC: Support fractional iteration count on compositor animations

content/renderer/compositor_bindings/web_animation_impl.cc

Index: content/renderer/compositor_bindings/web_animation_impl.cc
diff --git a/content/renderer/compositor_bindings/web_animation_impl.cc b/content/renderer/compositor_bindings/web_animation_impl.cc
index 67eedd1401be43e95e7498470d416dac87d1c541..9e9092b6cb27c1b7f874e30492eecc5bf28a56e7 100644
--- a/content/renderer/compositor_bindings/web_animation_impl.cc
+++ b/content/renderer/compositor_bindings/web_animation_impl.cc
@@ -79,6 +79,15 @@ WebCompositorAnimationImpl::targetProperty() const {
       animation_->target_property());
 }
 
+#if WEB_ANIMATION_SUPPORTS_FRACTIONAL_ITERATIONS
+double WebCompositorAnimationImpl::iterations() const {
+  return animation_->iterations();
+}
+
+void WebCompositorAnimationImpl::setIterations(double n) {
+  animation_->set_iterations(n);
+}
+#else
 int WebCompositorAnimationImpl::iterations() const {
   return animation_->iterations();
 }
@@ -86,6 +95,7 @@ int WebCompositorAnimationImpl::iterations() const {
 void WebCompositorAnimationImpl::setIterations(int n) {
   animation_->set_iterations(n);
 }
+#endif
 
 double WebCompositorAnimationImpl::startTime() const {
   return (animation_->start_time() - base::TimeTicks()).InSecondsF();