Remove the acceleratedCompositingForAnimationEnabled setting.

Source/core/rendering/compositing/CompositingReasonFinder.cpp

Index: Source/core/rendering/compositing/CompositingReasonFinder.cpp
diff --git a/Source/core/rendering/compositing/CompositingReasonFinder.cpp b/Source/core/rendering/compositing/CompositingReasonFinder.cpp
index e75ce23b07663e562d07d21cf5fd86ee7a4a57a1..d21334866bec1ff1aeb1d9e4761f509053164dff 100644
--- a/Source/core/rendering/compositing/CompositingReasonFinder.cpp
+++ b/Source/core/rendering/compositing/CompositingReasonFinder.cpp
@@ -49,8 +49,6 @@ void CompositingReasonFinder::updateTriggers()
         m_compositingTriggers |= PluginTrigger;
     if (settings.acceleratedCompositingForCanvasEnabled())
         m_compositingTriggers |= CanvasTrigger;
-    if (settings.acceleratedCompositingForAnimationEnabled())
-        m_compositingTriggers |= AnimationTrigger;
     if (settings.compositedScrollingForFramesEnabled())
         m_compositingTriggers |= ScrollableInnerFrameTrigger;
     if (settings.acceleratedCompositingForFiltersEnabled())
@@ -69,11 +67,6 @@ void CompositingReasonFinder::updateTriggers()
         m_compositingTriggers |= ViewportConstrainedPositionedTrigger;
 }
 
-bool CompositingReasonFinder::hasAnimationTrigger() const
-{
-    return m_compositingTriggers & AnimationTrigger;
-}
-
 bool CompositingReasonFinder::hasOverflowScrollTrigger() const
 {
     return m_compositingTriggers & OverflowScrollTrigger;
@@ -217,9 +210,6 @@ CompositingReasons CompositingReasonFinder::nonStyleDeterminedDirectReasons(cons
 
 bool CompositingReasonFinder::requiresCompositingForAnimation(RenderObject* renderer) const
 {
-    if (!(m_compositingTriggers & AnimationTrigger))
-        return false;
-
     return renderer->style()->shouldCompositeForCurrentAnimations();
 }