CC Animation: Use ElementId to attach CC animation players.

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

Index: third_party/WebKit/Source/core/animation/CompositorAnimations.cpp
diff --git a/third_party/WebKit/Source/core/animation/CompositorAnimations.cpp b/third_party/WebKit/Source/core/animation/CompositorAnimations.cpp
index fd3f332118dd73fa4655720c2944f46a511938ed..8c373f2e720204956355dfbecc90f4a9cc10f8bd 100644
--- a/third_party/WebKit/Source/core/animation/CompositorAnimations.cpp
+++ b/third_party/WebKit/Source/core/animation/CompositorAnimations.cpp
@@ -391,41 +391,6 @@ void CompositorAnimations::pauseAnimationForTestingOnCompositor(const Element& e
     compositorPlayer->pauseAnimation(id, pauseTime);
 }
 
-bool CompositorAnimations::canAttachCompositedLayers(const Element& element, const Animation& animation)
-{
-    if (!animation.compositorPlayer())
-        return false;
-
-    if (!element.layoutObject() || !element.layoutObject()->isBoxModelObject())
-        return false;
-
-    PaintLayer* layer = toLayoutBoxModelObject(element.layoutObject())->layer();
-
-    if (!layer || !layer->isAllowedToQueryCompositingState()
-        || !layer->compositedLayerMapping()
-        || !layer->compositedLayerMapping()->mainGraphicsLayer())
-        return false;
-
-    if (!layer->compositedLayerMapping()->mainGraphicsLayer()->platformLayer())
-        return false;
-
-    return true;
-}
-
-void CompositorAnimations::attachCompositedLayers(const Element& element, const Animation& animation)
-{
-    ASSERT(element.layoutObject());
-
-    PaintLayer* layer = toLayoutBoxModelObject(element.layoutObject())->layer();
-    ASSERT(layer);
-
-    CompositorAnimationPlayer* compositorPlayer = animation.compositorPlayer();
-    ASSERT(compositorPlayer);
-
-    ASSERT(layer->compositedLayerMapping());
-    compositorPlayer->attachLayer(layer->compositedLayerMapping()->mainGraphicsLayer()->platformLayer());
-}
-

[loyso (OOO), 2016/05/03 07:26:40]

This is the cool deletion. We will bypass all those trees of layers.

 // -----------------------------------------------------------------------
 // CompositorAnimationsImpl
 // -----------------------------------------------------------------------