Oilpan: Move AnimationNode::EventDelegate to oilpan's heap

Source/core/animation/AnimationNode.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 52 matching lines @@
     friend class AnimationPlayer; // Calls attach/detach, updateInheritedTime.
 public:
     // Note that logic in CSSAnimations depends on the order of these values.
     enum Phase {
         PhaseBefore,
         PhaseActive,
         PhaseAfter,
         PhaseNone,
     };
 
-    class EventDelegate {
+    class EventDelegate : public NoBaseWillBeGarbageCollectedFinalized<EventDelegate> {
     public:
-        virtual ~EventDelegate() { };
+        virtual ~EventDelegate() { }
         virtual void onEventCondition(const AnimationNode*) = 0;
+        virtual void trace(Visitor*) { }
     };
 
     virtual ~AnimationNode() { }
 
     virtual bool isAnimation() const { return false; }
 
     Phase phase() const { return ensureCalculated().phase; }
     bool isCurrent() const { return ensureCalculated().isCurrent; }
     bool isInEffect() const { return ensureCalculated().isInEffect; }
     bool isInPlay() const { return ensureCalculated().isInPlay; }
@@ skipping 20 matching lines @@
     PassRefPtrWillBeRawPtr<AnimationNodeTiming> timing();
     void updateSpecifiedTiming(const Timing&);
 
     // This method returns time in ms as it is unused except via the API.
     double localTime(bool& isNull) const { isNull = !m_player; return ensureCalculated().localTime * 1000; }
     double currentIteration(bool& isNull) const { isNull = !ensureCalculated().isInEffect; return ensureCalculated().currentIteration; }
 
     virtual void trace(Visitor*);
 
 protected:
-    explicit AnimationNode(const Timing&, PassOwnPtr<EventDelegate> = nullptr);
+    explicit AnimationNode(const Timing&, PassOwnPtrWillBeRawPtr<EventDelegate> = nullptr);
 
     // When AnimationNode receives a new inherited time via updateInheritedTime
     // it will (if necessary) recalculate timings and (if necessary) call
     // updateChildrenAndEffects.
     void updateInheritedTime(double inheritedTime, TimingUpdateReason) const;
     void invalidate() const { m_needsUpdate = true; };
     bool hasEvents() const { return m_eventDelegate; }
     void clearEventDelegate() { m_eventDelegate = nullptr; }
 
     virtual void attach(AnimationPlayer* player)
@@ skipping 12 matching lines @@
     virtual void updateChildrenAndEffects() const = 0;
     virtual double intrinsicIterationDuration() const { return 0; };
     virtual double calculateTimeToEffectChange(bool forwards, double localTime, double timeToNextIteration) const = 0;
     virtual void specifiedTimingChanged() { }
 
     // FIXME: m_parent and m_startTime are placeholders, they depend on timing groups.
     RawPtrWillBeMember<AnimationNode> m_parent;
     const double m_startTime;
     RawPtrWillBeMember<AnimationPlayer> m_player;
     Timing m_timing;
-    OwnPtr<EventDelegate> m_eventDelegate;
+    OwnPtrWillBeMember<EventDelegate> m_eventDelegate;
 
     mutable struct CalculatedTiming {
         Phase phase;
         double currentIteration;
         double timeFraction;
         bool isCurrent;
         bool isInEffect;
         bool isInPlay;
         double localTime;
         double timeToForwardsEffectChange;
         double timeToReverseEffectChange;
     } m_calculated;
     mutable bool m_needsUpdate;
     mutable double m_lastUpdateTime;
 
     const CalculatedTiming& ensureCalculated() const;
 };
 
 } // namespace blink
 
 #endif