cc: Plumb group id through animation creation and start/finish notifications

cc/blink/web_to_cc_animation_delegate_adapter.cc

Index: cc/blink/web_to_cc_animation_delegate_adapter.cc
diff --git a/cc/blink/web_to_cc_animation_delegate_adapter.cc b/cc/blink/web_to_cc_animation_delegate_adapter.cc
index 840cd4ff9d893c098937380821f2a415bbaabe0e..fcec11fd92ea436984dac1144949579e0f6eb0f2 100644
--- a/cc/blink/web_to_cc_animation_delegate_adapter.cc
+++ b/cc/blink/web_to_cc_animation_delegate_adapter.cc
@@ -14,20 +14,30 @@ WebToCCAnimationDelegateAdapter::WebToCCAnimationDelegateAdapter(
 
 void WebToCCAnimationDelegateAdapter::NotifyAnimationStarted(
     base::TimeTicks monotonic_time,
-    cc::Animation::TargetProperty target_property) {
+    cc::Animation::TargetProperty target_property,
+    int group) {
   delegate_->notifyAnimationStarted(
       (monotonic_time - base::TimeTicks()).InSecondsF(),
+#if WEB_COMPOSITOR_ANIMATION_DELEGATE_TAKES_GROUP
+      group);
+#else
       static_cast<blink::WebCompositorAnimation::TargetProperty>(
           target_property));
+#endif
 }
 
 void WebToCCAnimationDelegateAdapter::NotifyAnimationFinished(
     base::TimeTicks monotonic_time,
-    cc::Animation::TargetProperty target_property) {
+    cc::Animation::TargetProperty target_property,
+    int group) {
   delegate_->notifyAnimationFinished(
       (monotonic_time - base::TimeTicks()).InSecondsF(),
+#if WEB_COMPOSITOR_ANIMATION_DELEGATE_TAKES_GROUP
+      group);
+#else
       static_cast<blink::WebCompositorAnimation::TargetProperty>(
           target_property));
+#endif
 }
 
 }  // namespace cc_blink