[Oilpan] Migrate most classes under core/animations to Oilpan heap.

Source/core/animation/AnimationNode.h

Index: Source/core/animation/AnimationNode.h
diff --git a/Source/core/animation/AnimationNode.h b/Source/core/animation/AnimationNode.h
index 985f69d420bb7b949b5c3172eef65c9c3cfecf27..38df8280b19b1c7faee08fad8834e4620d86c3c8 100644
--- a/Source/core/animation/AnimationNode.h
+++ b/Source/core/animation/AnimationNode.h
@@ -61,7 +61,7 @@ static inline double nullValue()
     return std::numeric_limits<double>::quiet_NaN();
 }
 
-class CORE_EXPORT AnimationNode : public RefCountedWillBeGarbageCollectedFinalized<AnimationNode>, public ScriptWrappable {
+class CORE_EXPORT AnimationNode : public GarbageCollectedFinalized<AnimationNode>, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
     friend class AnimationPlayer; // Calls attach/detach, updateInheritedTime.
 public:
@@ -73,7 +73,7 @@ public:
         PhaseNone,
     };
 
-    class EventDelegate : public NoBaseWillBeGarbageCollectedFinalized<EventDelegate> {
+    class EventDelegate : public GarbageCollectedFinalized<EventDelegate> {
     public:
         virtual ~EventDelegate() { }
         virtual bool requiresIterationEvents(const AnimationNode&) = 0;
@@ -102,7 +102,7 @@ public:
     const AnimationPlayer* player() const { return m_player; }
     AnimationPlayer* player() { return m_player; }
     const Timing& specifiedTiming() const { return m_timing; }
-    PassRefPtrWillBeRawPtr<AnimationNodeTiming> timing();
+    AnimationNodeTiming* timing();
     void updateSpecifiedTiming(const Timing&);
 
     void computedTiming(ComputedTimingProperties&);
@@ -114,7 +114,7 @@ public:
     DECLARE_VIRTUAL_TRACE();
 
 protected:
-    explicit AnimationNode(const Timing&, PassOwnPtrWillBeRawPtr<EventDelegate> = nullptr);
+    explicit AnimationNode(const Timing&, EventDelegate* = nullptr);
 
     // When AnimationNode receives a new inherited time via updateInheritedTime
     // it will (if necessary) recalculate timings and (if necessary) call
@@ -143,11 +143,11 @@ protected:
     virtual void specifiedTimingChanged() { }
 
     // FIXME: m_parent and m_startTime are placeholders, they depend on timing groups.
-    RawPtrWillBeMember<AnimationNode> m_parent;
+    Member<AnimationNode> m_parent;
     const double m_startTime;
     RawPtrWillBeMember<AnimationPlayer> m_player;
     Timing m_timing;
-    OwnPtrWillBeMember<EventDelegate> m_eventDelegate;
+    Member<EventDelegate> m_eventDelegate;
 
     mutable struct CalculatedTiming {
         Phase phase;