WIP (Introduce WTF::NonNullPtr<T>.)

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 7e69cf5deac8b64d7d9594e6133848eb29a42eb1..d4d162b5727f49e5b9701368c4a4082f056f6966 100644
--- a/Source/core/rendering/RenderLayerCompositor.cpp
+++ b/Source/core/rendering/RenderLayerCompositor.cpp
@@ -362,7 +362,7 @@ void RenderLayerCompositor::updateCompositingLayers(CompositingUpdateType update
     if (!m_reevaluateCompositingAfterLayout && !m_compositing)
         return;
 
-    AnimationUpdateBlock animationUpdateBlock(m_renderView->frameView()->frame().animation());
+    AnimationUpdateBlock animationUpdateBlock(m_renderView->frameView()->frame().animation().get());
 
     TemporaryChange<bool> postLayoutChange(m_inPostLayoutUpdate, true);
 
@@ -2005,10 +2005,7 @@ bool RenderLayerCompositor::requiresCompositingForAnimation(RenderObject* render
 {
     if (!(m_compositingTriggers & ChromeClient::AnimationTrigger))
         return false;
-
-    if (AnimationController* animController = renderer->animation())
-        return animController->isRunningAcceleratableAnimationOnRenderer(renderer);
-    return false;
+    return renderer->animation()->isRunningAcceleratableAnimationOnRenderer(renderer);
 }
 
 bool RenderLayerCompositor::requiresCompositingForTransition(RenderObject* renderer) const
@@ -2200,11 +2197,7 @@ bool RenderLayerCompositor::isRunningAcceleratedTransformAnimation(RenderObject*
 {
     if (!(m_compositingTriggers & ChromeClient::AnimationTrigger))
         return false;
-
-    if (AnimationController* animController = renderer->animation())
-        return animController->isRunningAnimationOnRenderer(renderer, CSSPropertyWebkitTransform);
-
-    return false;
+    return renderer->animation()->isRunningAnimationOnRenderer(renderer, CSSPropertyWebkitTransform);
 }
 
 // If an element has negative z-index children, those children render in front of the