Web Animations: Remove legacy animations engine.

Source/core/rendering/RenderLayerCompositor.cpp

Index: Source/core/rendering/RenderLayerCompositor.cpp
diff --git a/Source/core/rendering/RenderLayerCompositor.cpp b/Source/core/rendering/RenderLayerCompositor.cpp
index b86537ee32d7dc01985c884de4c16f90795b893c..dbbf37e0b2f8e79f5daaf8ba8d239d1f995841b7 100644
--- a/Source/core/rendering/RenderLayerCompositor.cpp
+++ b/Source/core/rendering/RenderLayerCompositor.cpp
@@ -44,7 +44,6 @@
 #include "core/frame/FrameView.h"
 #include "core/page/Page.h"
 #include "core/frame/Settings.h"
-#include "core/frame/animation/AnimationController.h"
 #include "core/page/scrolling/ScrollingConstraints.h"
 #include "core/page/scrolling/ScrollingCoordinator.h"
 #include "core/rendering/CompositedLayerMapping.h"
@@ -425,8 +424,6 @@ void RenderLayerCompositor::updateCompositingLayers()
     if (!m_needsToRecomputeCompositingRequirements && !m_compositing)
         return;
 
-    AnimationUpdateBlock animationUpdateBlock(m_renderView->frameView()->frame().animation());
-
     TemporaryChange<bool> postLayoutChange(m_inPostLayoutUpdate, true);
 
     bool needCompositingRequirementsUpdate = m_needsToRecomputeCompositingRequirements;
@@ -1880,9 +1877,6 @@ bool RenderLayerCompositor::requiresCompositingForAnimation(RenderObject* render
     if (!(m_compositingTriggers & ChromeClient::AnimationTrigger))
         return false;
 
-    if (!RuntimeEnabledFeatures::webAnimationsCSSEnabled())
-        return renderer->animation().isRunningAcceleratableAnimationOnRenderer(renderer);
-
     return shouldCompositeForActiveAnimations(*renderer);
 }
 
@@ -2097,8 +2091,6 @@ bool RenderLayerCompositor::isRunningAcceleratedTransformAnimation(RenderObject*
 {
     if (!(m_compositingTriggers & ChromeClient::AnimationTrigger))
         return false;
-    if (!RuntimeEnabledFeatures::webAnimationsCSSEnabled())
-        return renderer->animation().isRunningAnimationOnRenderer(renderer, CSSPropertyWebkitTransform);
     return hasActiveAnimations(*renderer, CSSPropertyWebkitTransform);
 }