Web Animations: Trigger and update CSS Animations backed by the Web Animations model

Source/core/css/resolver/StyleResolver.h

Index: Source/core/css/resolver/StyleResolver.h
diff --git a/Source/core/css/resolver/StyleResolver.h b/Source/core/css/resolver/StyleResolver.h
index 3c5a8b3927b51331ee1207faf1209d702d63b299..81afe1fed4ce0afa1ff694a93cdefb977fc97367 100644
--- a/Source/core/css/resolver/StyleResolver.h
+++ b/Source/core/css/resolver/StyleResolver.h
@@ -42,6 +42,7 @@
 
 namespace WebCore {
 
+class CSSAnimationUpdate;
 class CSSFontSelector;
 class CSSRuleList;
 class CSSSelector;
@@ -222,7 +223,7 @@ public:
     // FIXME: Used by SharingStyleFinder, but should be removed.
     bool styleSharingCandidateMatchesRuleSet(const ElementResolveContext&, RenderStyle*, RuleSet*);
 
-    const StyleRuleKeyframes* matchScopedKeyframesRule(Element*, const StringImpl* animationName);
+    const StyleRuleKeyframes* matchScopedKeyframesRule(const Element*, const StringImpl* animationName);
     PassRefPtr<RenderStyle> styleForKeyframe(Element*, const RenderStyle*, const StyleKeyframe*, KeyframeValue&);
 
     // These methods will give back the set of rules that matched for a given element (or a pseudo-element).
@@ -288,6 +289,7 @@ private:
 
     bool fastRejectSelector(const RuleData&) const;
 
+    PassOwnPtr<CSSAnimationUpdate> calculateCSSAnimationUpdate(StyleResolverState&);
     void applyMatchedProperties(StyleResolverState&, const MatchResult&);
 
     enum StyleApplicationPass {
@@ -303,7 +305,7 @@ private:
     template <StyleApplicationPass pass>
     void applyProperties(StyleResolverState&, const StylePropertySet* properties, StyleRule*, bool isImportant, bool inheritedOnly, PropertyWhitelistType = PropertyWhitelistNone);
     template <StyleApplicationPass pass>
-    void applyAnimatedProperties(StyleResolverState&, const Element*, const DocumentTimeline*);
+    void applyAnimatedProperties(StyleResolverState&, const Element*, const DocumentTimeline*, const CSSAnimationUpdate*);
     void resolveVariables(StyleResolverState&, CSSPropertyID, CSSValue*, Vector<std::pair<CSSPropertyID, String> >& knownExpressions);
     void matchPageRules(MatchResult&, RuleSet*, bool isLeftPage, bool isFirstPage, const String& pageName);
     void matchPageRulesForList(Vector<StyleRulePage*>& matchedRules, const Vector<StyleRulePage*>&, bool isLeftPage, bool isFirstPage, const String& pageName);