Web Animations: Use StringKeyframes for element.animate()

Source/core/css/resolver/StyleResolver.cpp

Index: Source/core/css/resolver/StyleResolver.cpp
diff --git a/Source/core/css/resolver/StyleResolver.cpp b/Source/core/css/resolver/StyleResolver.cpp
index 29c8c2ef458666e9aae0e05f26ebef9e3dbe857e..1bcdb0b0d91db5dfe2c72ab888baeee030e1e94b 100644
--- a/Source/core/css/resolver/StyleResolver.cpp
+++ b/Source/core/css/resolver/StyleResolver.cpp
@@ -794,21 +794,12 @@ PassRefPtr<RenderStyle> StyleResolver::styleForKeyframe(Element* element, const
 
 // This function is used by the WebAnimations JavaScript API method animate().
 // FIXME: Remove this when animate() switches away from resolution-dependent parsing.
-PassRefPtrWillBeRawPtr<AVKeyframeEffectModel> StyleResolver::createKeyframeEffectModel(Element& element, const Vector<RefPtr<MutableStylePropertySet> >& propertySetVector, AVKeyframeVector& keyframes)
+PassRefPtr<AnimatableValue> StyleResolver::createAnimatableValueSnapshot(Element& element, RenderStyle& style, CSSPropertyID property, CSSValue* value)
 {
-    ASSERT(propertySetVector.size() == keyframes.size());
-
     StyleResolverState state(element.document(), &element);
-    state.setStyle(RenderStyle::create());
-
-    for (unsigned i = 0; i < propertySetVector.size(); ++i) {
-        for (unsigned j = 0; j < propertySetVector[i]->propertyCount(); ++j) {
-            CSSPropertyID id = propertySetVector[i]->propertyAt(j).id();
-            StyleBuilder::applyProperty(id, state, propertySetVector[i]->getPropertyCSSValue(id).get());
-            keyframes[i]->setPropertyValue(id, CSSAnimatableValueFactory::create(id, *state.style()).get());
-        }
-    }
-    return AVKeyframeEffectModel::create(keyframes);
+    state.setStyle(&style);
+    StyleBuilder::applyProperty(property, state, value);
+    return CSSAnimatableValueFactory::create(property, style);
 }
 
 PassRefPtr<PseudoElement> StyleResolver::createPseudoElementIfNeeded(Element& parent, PseudoId pseudoId)