[SPv2] Decomposite otherwise-compositable animations that paint nothing.

third_party/WebKit/Source/core/animation/AnimationTimelineTest.cpp

 /*
  * Copyright (c) 2013, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 58 matching lines @@
 
   virtual void TearDown() {
     document.release();
     element.release();
     timeline.release();
     ThreadState::current()->collectAllGarbage();
   }
 
   void updateClockAndService(double time) {
     document->animationClock().updateTime(time);
-    document->compositorPendingAnimations().update(false);
+    document->compositorPendingAnimations().update(
+        Optional<CompositorElementIdSet>(), false);
     timeline->serviceAnimations(TimingUpdateForAnimationFrame);
     timeline->scheduleNextService();
   }
 
   std::unique_ptr<DummyPageHolder> pageHolder;
   Persistent<Document> document;
   Persistent<Element> element;
   Persistent<AnimationTimeline> timeline;
   Timing timing;
   Persistent<MockPlatformTiming> platformTiming;
@@ skipping 242 matching lines @@
 }
 
 TEST_F(AnimationAnimationTimelineTest, UseAnimationAfterTimelineDeref) {
   Animation* animation = timeline->play(0);
   timeline.clear();
   // Test passes if this does not crash.
   animation->setStartTime(0);
 }
 
 }  // namespace blink