Web Animations CSS: Start running animations on the compositor

Source/core/animation/ActiveAnimations.h

Index: Source/core/animation/ActiveAnimations.h
diff --git a/Source/core/animation/ActiveAnimations.h b/Source/core/animation/ActiveAnimations.h
index 58d4287950208736e5283db10df02fb113d18fca..80e7568f259171c98266f85e8f864c020681cea7 100644
--- a/Source/core/animation/ActiveAnimations.h
+++ b/Source/core/animation/ActiveAnimations.h
@@ -40,6 +40,14 @@
 
 namespace WebCore {
 
+class RenderObject;
+class Element;
+
+// FIXME: Move these to CompositorAnimations
+bool shouldCompositeForAnimation(const RenderObject&, bool renderViewInCompositingMode);
+bool isRunningAnimation(const RenderObject&, CSSPropertyID);
+bool isRunningCompositorAnimations(const RenderObject&, CSSPropertyID);
+
 class ActiveAnimations {
 public:
     // Animations that are currently active for this element, their effects will be applied
@@ -49,6 +57,7 @@ public:
     // will also be part of the default stack, but the mapping betwen animation name and
     // player is kept here.
     CSSAnimations& cssAnimations() { return m_cssAnimations; }
+    const CSSAnimations& cssAnimations() const { return m_cssAnimations; }
 
     typedef HashCountedSet<Player*> PlayerSet;
     // Players which have animations targeting this element.
@@ -56,6 +65,11 @@ public:
     PlayerSet& players() { return m_players; }
 
     bool isEmpty() const { return m_defaultStack.isEmpty() && m_cssAnimations.isEmpty(); }
+
+    bool isRunningAnimation(CSSPropertyID) const;
+    bool isRunningCompositorAnimations(CSSPropertyID) const;
+    void cancelCompositorAnimations();
+
 private:
     AnimationStack m_defaultStack;
     CSSAnimations m_cssAnimations;