Revert "Web Animations: Introduce String based KeyframeEffectModel"

Source/core/animation/CompositorAnimationsImpl.h

Index: Source/core/animation/CompositorAnimationsImpl.h
diff --git a/Source/core/animation/CompositorAnimationsImpl.h b/Source/core/animation/CompositorAnimationsImpl.h
index 41d8886a0b2a6a48f65b5ee7a972297592c1ddcf..4ad07bd1c140513dee6ce2e65573a85d4ece2f9b 100644
--- a/Source/core/animation/CompositorAnimationsImpl.h
+++ b/Source/core/animation/CompositorAnimationsImpl.h
@@ -36,6 +36,8 @@
 
 namespace WebCore {
 
+typedef KeyframeEffectModel::PropertySpecificKeyframeVector KeyframeVector;
+
 class CompositorAnimationsImpl {
 private:
     struct CompositorTiming {
@@ -48,9 +50,9 @@ private:
 
     static bool convertTimingForCompositor(const Timing&, CompositorTiming& out);
 
-    static void getAnimationOnCompositor(const Timing&, const AnimatableValueKeyframeEffectModel&, Vector<OwnPtr<blink::WebAnimation> >& animations);
+    static void getAnimationOnCompositor(const Timing&, const KeyframeEffectModel&, Vector<OwnPtr<blink::WebAnimation> >& animations);
 
-    static void addKeyframesToCurve(blink::WebAnimationCurve&, const AnimatableValuePropertySpecificKeyframeVector&, bool reverse);
+    static void addKeyframesToCurve(blink::WebAnimationCurve&, const KeyframeVector&, bool reverse);
 
     friend class CompositorAnimations;
     friend class AnimationCompositorAnimationsTest;