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

Source/core/inspector/InspectorAnimationAgent.h

Index: Source/core/inspector/InspectorAnimationAgent.h
diff --git a/Source/core/inspector/InspectorAnimationAgent.h b/Source/core/inspector/InspectorAnimationAgent.h
index af1afbe580dc5af4f253934e388b12e10e83e4d6..c3c145293e0328d8be82556cae8c7f13149c1004 100644
--- a/Source/core/inspector/InspectorAnimationAgent.h
+++ b/Source/core/inspector/InspectorAnimationAgent.h
@@ -62,13 +62,13 @@ private:
 
     PassRefPtr<TypeBuilder::Animation::AnimationPlayer> buildObjectForAnimationPlayer(Animation&);
     PassRefPtr<TypeBuilder::Animation::AnimationPlayer> buildObjectForAnimationPlayer(Animation&, AnimationType, PassRefPtr<TypeBuilder::Animation::KeyframesRule> keyframeRule = nullptr);
-    PassRefPtr<TypeBuilder::Array<TypeBuilder::Animation::AnimationPlayer>> buildArrayForAnimations(Element&, const WillBeHeapVector<RefPtrWillBeMember<Animation>>);
+    PassRefPtr<TypeBuilder::Array<TypeBuilder::Animation::AnimationPlayer>> buildArrayForAnimations(Element&, const HeapVector<Member<Animation>>);
     double normalizedStartTime(Animation&);
     AnimationTimeline& referenceTimeline();
 
     RawPtrWillBeMember<InspectorPageAgent> m_pageAgent;
     RawPtrWillBeMember<InspectorDOMAgent> m_domAgent;
-    WillBeHeapHashMap<String, RefPtrWillBeMember<Animation>> m_idToAnimation;
+    PersistentHeapHashMapWillBeHeapHashMap<String, Member<Animation>> m_idToAnimation;
     WillBeHeapHashMap<String, AnimationType> m_idToAnimationType;
     double m_latestStartTime;
 };