Animations: Introduce compositor AnimationPlayer and AnimationTimeline.

Source/core/animation/Animation.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 277 matching lines @@
 {
     // FIXME: cancelAnimationOnCompositor is called from withins style recalc.
     // This queries compositingState, which is not necessarily up to date.
     // https://code.google.com/p/chromium/issues/detail?id=339847
     DisableCompositingQueryAsserts disabler;
     if (!hasActiveAnimationsOnCompositor())
         return;
     if (!m_target || !m_target->renderer())
         return;
     for (const auto& compositorAnimationId : m_compositorAnimationIds)
-        CompositorAnimations::instance()->cancelAnimationOnCompositor(*m_target, compositorAnimationId);
+        CompositorAnimations::instance()->cancelAnimationOnCompositor(*m_target, player(), compositorAnimationId);
     m_compositorAnimationIds.clear();
     player()->setCompositorPending(true);
 }
 
 void Animation::cancelIncompatibleAnimationsOnCompositor()
 {
     if (m_target && player() && effect())
         CompositorAnimations::instance()->cancelIncompatibleAnimationsOnCompositor(*m_target, *player(), *effect());
 }
 
 void Animation::pauseAnimationForTestingOnCompositor(double pauseTime)
 {
     ASSERT(hasActiveAnimationsOnCompositor());
     if (!m_target || !m_target->renderer())
         return;
     for (const auto& compositorAnimationId : m_compositorAnimationIds)
-        CompositorAnimations::instance()->pauseAnimationForTestingOnCompositor(*m_target, compositorAnimationId, pauseTime);
+        CompositorAnimations::instance()->pauseAnimationForTestingOnCompositor(*m_target, player(), compositorAnimationId, pauseTime);
 }
 
 void Animation::trace(Visitor* visitor)
 {
     visitor->trace(m_target);
     visitor->trace(m_effect);
     visitor->trace(m_sampledEffect);
     AnimationNode::trace(visitor);
 }
 
 } // namespace blink