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 77063e677f3c291aa215bbfc26a5196f87b1b4e0..b2404e275450d3d72b3ef4df8286073b614878bb 100644
--- a/Source/core/rendering/RenderLayerCompositor.cpp
+++ b/Source/core/rendering/RenderLayerCompositor.cpp
@@ -38,7 +38,6 @@
 #include "core/frame/Frame.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/Settings.h"
-#include "core/frame/animation/AnimationController.h"
 #include "core/html/HTMLCanvasElement.h"
 #include "core/html/HTMLIFrameElement.h"
 #include "core/html/HTMLMediaElement.h"
@@ -413,8 +412,6 @@ 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;
@@ -1869,9 +1866,6 @@ bool RenderLayerCompositor::requiresCompositingForAnimation(RenderObject* render
     if (!(m_compositingTriggers & ChromeClient::AnimationTrigger))
         return false;
 
-    if (!RuntimeEnabledFeatures::webAnimationsCSSEnabled())
-        return renderer->animation().isRunningAcceleratableAnimationOnRenderer(renderer);
-
     return shouldCompositeForActiveAnimations(*renderer);
 }
 
@@ -2086,8 +2080,6 @@ bool RenderLayerCompositor::isRunningAcceleratedTransformAnimation(RenderObject*
 {
     if (!(m_compositingTriggers & ChromeClient::AnimationTrigger))
         return false;
-    if (!RuntimeEnabledFeatures::webAnimationsCSSEnabled())
-        return renderer->animation().isRunningAnimationOnRenderer(renderer, CSSPropertyWebkitTransform);
     return hasActiveAnimations(*renderer, CSSPropertyWebkitTransform);
 }