Oilpan: Unship CSSValues and AnimatableValues

Source/core/animation/css/CSSAnimationUpdate.h

Index: Source/core/animation/css/CSSAnimationUpdate.h
diff --git a/Source/core/animation/css/CSSAnimationUpdate.h b/Source/core/animation/css/CSSAnimationUpdate.h
index 1553414beffdbc19fa8d09aeb0fc66f9e2bfa1a9..a63ca4167e8ce1ee1a9deeb5f9e185c415d24f77 100644
--- a/Source/core/animation/css/CSSAnimationUpdate.h
+++ b/Source/core/animation/css/CSSAnimationUpdate.h
@@ -95,19 +95,10 @@ public:
         ALLOW_ONLY_INLINE_ALLOCATION();
     public:
         struct CompositableStyleSnapshot {
-            DISALLOW_ALLOCATION();
-
         public:
-            RefPtrWillBeMember<AnimatableValue> opacity;
-            RefPtrWillBeMember<AnimatableValue> transform;
-            RefPtrWillBeMember<AnimatableValue> webkitFilter;
-
-            DEFINE_INLINE_TRACE()
-            {
-                visitor->trace(opacity);
-                visitor->trace(transform);
-                visitor->trace(webkitFilter);
-            }
+            RefPtr<AnimatableValue> opacity;
+            RefPtr<AnimatableValue> transform;
+            RefPtr<AnimatableValue> webkitFilter;
         };
 
         UpdatedAnimationStyle()
@@ -125,7 +116,6 @@ public:
         {
             visitor->trace(animation);
             visitor->trace(model);
-            visitor->trace(snapshot);
         }
 
         RawPtrWillBeMember<Animation> animation;
@@ -239,14 +229,12 @@ public:
     public:
         DEFINE_INLINE_TRACE()
         {
-            visitor->trace(from);
-            visitor->trace(to);
             visitor->trace(effect);
         }
 
         CSSPropertyID id;
-        RawPtrWillBeMember<const AnimatableValue> from;
-        RawPtrWillBeMember<const AnimatableValue> to;
+        RawPtr<const AnimatableValue> from;
+        RawPtr<const AnimatableValue> to;
         RefPtrWillBeMember<InertEffect> effect;
     };
     using NewTransitionMap = WillBeHeapHashMap<CSSPropertyID, NewTransition>;
@@ -306,6 +294,8 @@ private:
 
     ActiveInterpolationMap m_activeInterpolationsForAnimations;
     ActiveInterpolationMap m_activeInterpolationsForTransitions;
+
+    friend class PendingAnimationUpdate;
 };
 
 } // namespace blink