CC Animation: Use ElementId to attach CC animation players.

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

Index: third_party/WebKit/Source/core/animation/KeyframeEffect.cpp
diff --git a/third_party/WebKit/Source/core/animation/KeyframeEffect.cpp b/third_party/WebKit/Source/core/animation/KeyframeEffect.cpp
index 4f001bcf8c8b18f03b48da622c917912d0ac9116..8be222a9c20c37a72151ba6bb694e5d554d130fd 100644
--- a/third_party/WebKit/Source/core/animation/KeyframeEffect.cpp
+++ b/third_party/WebKit/Source/core/animation/KeyframeEffect.cpp
@@ -45,6 +45,7 @@
 #include "core/frame/UseCounter.h"
 #include "core/paint/PaintLayer.h"
 #include "core/svg/SVGElement.h"
+#include "platform/animation/CompositorAnimationPlayer.h"
 
 namespace blink {
 
@@ -354,19 +355,17 @@ void KeyframeEffect::pauseAnimationForTestingOnCompositor(double pauseTime)
         CompositorAnimations::instance()->pauseAnimationForTestingOnCompositor(*m_target, *animation(), compositorAnimationId, pauseTime);
 }
 
-bool KeyframeEffect::canAttachCompositedLayers() const
+bool KeyframeEffect::canAttachCompositorPlayerToElement() const
 {
-    if (!m_target || !animation())
-        return false;
-
-    return CompositorAnimations::instance()->canAttachCompositedLayers(*m_target, *animation());
+    return m_target && animation() && animation()->compositorPlayer();
 }
 
-void KeyframeEffect::attachCompositedLayers()
+void KeyframeEffect::attachCompositorPlayerToElement()
 {
     ASSERT(m_target);
     ASSERT(animation());
-    CompositorAnimations::instance()->attachCompositedLayers(*m_target, *animation());
+    ASSERT(animation()->compositorPlayer());
+    animation()->compositorPlayer()->attachElement(m_target->compositorElementId());
 }
 
 DEFINE_TRACE(KeyframeEffect)