[wip] interpolable value refactor. NOT FOR LANDING.

Source/core/animation/Animation.h

Index: Source/core/animation/Animation.h
diff --git a/Source/core/animation/Animation.h b/Source/core/animation/Animation.h
index 086e188d9af19bf4008667d99de29c2da74e9c7a..a041b9ae6d0c3317e66ef9a75cef83e0c6d10a5e 100644
--- a/Source/core/animation/Animation.h
+++ b/Source/core/animation/Animation.h
@@ -47,7 +47,7 @@ public:
     static PassRefPtr<Animation> create(PassRefPtr<Element>, PassRefPtr<AnimationEffect>, const Timing&, Priority = DefaultPriority, PassOwnPtr<EventDelegate> = nullptr);
     virtual bool isAnimation() const OVERRIDE { return true; }
 
-    const AnimationEffect::CompositableValueList* compositableValues() const
+    const Vector<RefPtr<Interpolation> >* compositableValues() const
     {
         ASSERT(m_compositableValues);
         return m_compositableValues.get();
@@ -82,7 +82,7 @@ private:
     RefPtr<AnimationEffect> m_effect;
 
     bool m_activeInAnimationStack;
-    OwnPtr<AnimationEffect::CompositableValueList> m_compositableValues;
+    OwnPtr<Vector<RefPtr<Interpolation> > > m_compositableValues;
 
     Priority m_priority;