Drive SVG Animations via requestAnimationFrame

Source/core/svg/SVGDocumentExtensions.h

Index: Source/core/svg/SVGDocumentExtensions.h
diff --git a/Source/core/svg/SVGDocumentExtensions.h b/Source/core/svg/SVGDocumentExtensions.h
index abf4a68172e00db9df9d538f42a14f57d8930ef9..ba099429b567a3687eb867c5ed85fe1a1b37a127 100644
--- a/Source/core/svg/SVGDocumentExtensions.h
+++ b/Source/core/svg/SVGDocumentExtensions.h
@@ -54,6 +54,8 @@ public:
     void removeResource(const AtomicString& id);
     RenderSVGResourceContainer* resourceById(const AtomicString& id) const;
 
+    static void serviceOnAnimationFrame(Document&, double monotonicAnimationStartTime);
+
     void startAnimations();
     void pauseAnimations();
     void unpauseAnimations();
@@ -109,6 +111,8 @@ public:
     void removeElementFromPendingResources(Element*);
     PassOwnPtr<SVGPendingElements> removePendingResource(const AtomicString& id);
 
+    void serviceAnimations(double monotonicAnimationStartTime);
+
     // The following two functions are used for scheduling a pending resource to be removed.
     void markPendingResourcesForRemoval(const AtomicString&);
     Element* removeElementFromPendingResourcesForRemoval(const AtomicString&);