Oilpan: Move AnimatableValue's hierarchy to oilpan's heap

Source/core/animation/css/CSSAnimations.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 60 matching lines @@
     }
     void toggleAnimationPaused(const AtomicString& name)
     {
         m_animationsWithPauseToggled.append(name);
     }
 
     void startTransition(CSSPropertyID id, const AnimatableValue* from, const AnimatableValue* to, PassRefPtr<InertAnimation> animation)
     {
         NewTransition newTransition;
         newTransition.id = id;
-        newTransition.from = from;
-        newTransition.to = to;
+        newTransition.from = const_cast<AnimatableValue*>(from);
+        newTransition.to = const_cast<AnimatableValue*>(to);
         newTransition.animation = animation;
         m_newTransitions.set(id, newTransition);
     }
     bool isCancelledTransition(CSSPropertyID id) const { return m_cancelledTransitions.contains(id); }
     void cancelTransition(CSSPropertyID id) { m_cancelledTransitions.add(id); }
 
     struct NewAnimation {
         AtomicString name;
         HashSet<RefPtr<InertAnimation> > animations;
     };
     const Vector<NewAnimation>& newAnimations() const { return m_newAnimations; }
     const Vector<AtomicString>& cancelledAnimationNames() const { return m_cancelledAnimationNames; }
     const HashSet<const AnimationPlayer*>& cancelledAnimationAnimationPlayers() const { return m_cancelledAnimationAnimationPlayers; }
     const Vector<AtomicString>& animationsWithPauseToggled() const { return m_animationsWithPauseToggled; }
 
     struct NewTransition {
+        ALLOW_ONLY_INLINE_ALLOCATION();
+    public:
+        void trace(Visitor* visitor)
+        {
+            visitor->trace(from);
+            visitor->trace(to);
+        }
+
         CSSPropertyID id;
-        const AnimatableValue* from;
-        const AnimatableValue* to;
+        RawPtrWillBeMember<AnimatableValue> from;
+        RawPtrWillBeMember<AnimatableValue> to;
         RefPtr<InertAnimation> animation;
     };
-    typedef HashMap<CSSPropertyID, NewTransition> NewTransitionMap;
+    typedef WillBeHeapHashMap<CSSPropertyID, NewTransition> NewTransitionMap;
     const NewTransitionMap& newTransitions() const { return m_newTransitions; }
     const HashSet<CSSPropertyID>& cancelledTransitions() const { return m_cancelledTransitions; }
 
     void adoptActiveInterpolationsForAnimations(HashMap<CSSPropertyID, RefPtr<Interpolation> >& newMap) { newMap.swap(m_activeInterpolationsForAnimations); }
     void adoptActiveInterpolationsForTransitions(HashMap<CSSPropertyID, RefPtr<Interpolation> >& newMap) { newMap.swap(m_activeInterpolationsForTransitions); }
     const HashMap<CSSPropertyID, RefPtr<Interpolation> >& activeInterpolationsForAnimations() const { return m_activeInterpolationsForAnimations; }
     const HashMap<CSSPropertyID, RefPtr<Interpolation> >& activeInterpolationsForTransitions() const { return m_activeInterpolationsForTransitions; }
     HashMap<CSSPropertyID, RefPtr<Interpolation> >& activeInterpolationsForAnimations() { return m_activeInterpolationsForAnimations; }
 
     bool isEmpty() const
@@ skipping 42 matching lines @@
     bool isEmpty() const { return m_animations.isEmpty() && m_transitions.isEmpty() && !m_pendingUpdate; }
     void cancel();
 
 private:
     // Note that a single animation name may map to multiple players due to
     // the way in which we split up animations with incomplete keyframes.
     // FIXME: Once the Web Animations model supports groups, we could use a
     // ParGroup to drive multiple animations from a single AnimationPlayer.
     typedef HashMap<AtomicString, HashSet<RefPtr<AnimationPlayer> > > AnimationMap;
     struct RunningTransition {
+        ALLOW_ONLY_INLINE_ALLOCATION();
+    public:
+        void trace(Visitor* visitor)
+        {
+            visitor->trace(from);
+            visitor->trace(to);
+        }
+
         Animation* transition; // The TransitionTimeline keeps the AnimationPlayers alive
-        const AnimatableValue* from;
-        const AnimatableValue* to;
+        RawPtrWillBeMember<AnimatableValue> from;
+        RawPtrWillBeMember<AnimatableValue> to;
     };
-    typedef HashMap<CSSPropertyID, RunningTransition > TransitionMap;
+    typedef WillBeHeapHashMap<CSSPropertyID, RunningTransition> TransitionMap;
     AnimationMap m_animations;
     TransitionMap m_transitions;
     OwnPtr<CSSAnimationUpdate> m_pendingUpdate;
 
     HashMap<CSSPropertyID, RefPtr<Interpolation> > m_previousActiveInterpolationsForAnimations;
 
     static void calculateAnimationUpdate(CSSAnimationUpdate*, Element*, const Element& parentElement, const RenderStyle&, RenderStyle* parentStyle, StyleResolver*);
     static void calculateTransitionUpdate(CSSAnimationUpdate*, const Element*, const RenderStyle&);
     static void calculateTransitionUpdateForProperty(CSSPropertyID, const CSSAnimationData*, const RenderStyle& oldStyle, const RenderStyle&, const TransitionMap* activeTransitions, CSSAnimationUpdate*, const Element*);
 
@@ skipping 24 matching lines @@
         virtual void onEventCondition(const TimedItem*, bool isFirstSample, TimedItem::Phase previousPhase, double previousIteration) OVERRIDE;
     private:
         Element* m_target;
         const CSSPropertyID m_property;
     };
 };
 
 } // namespace WebCore
 
 #endif