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

Source/core/animation/KeyframeEffect.h

Index: Source/core/animation/KeyframeEffect.h
diff --git a/Source/core/animation/KeyframeEffect.h b/Source/core/animation/KeyframeEffect.h
index 8cb329962e6f640b08aa947bdfbdab1a137f1001..a054004ca090bfba2e030e0782caf0e74dc9352b 100644
--- a/Source/core/animation/KeyframeEffect.h
+++ b/Source/core/animation/KeyframeEffect.h
@@ -50,23 +50,25 @@ class SampledEffect;
 
 class CORE_EXPORT KeyframeEffect final : public AnimationEffect {
     DEFINE_WRAPPERTYPEINFO();
+    USING_PRE_FINALIZER(KeyframeEffect, dispose);
 public:
     enum Priority { DefaultPriority, TransitionPriority };
 
-    static PassRefPtrWillBeRawPtr<KeyframeEffect> create(Element*, PassRefPtrWillBeRawPtr<EffectModel>, const Timing&, Priority = DefaultPriority, PassOwnPtrWillBeRawPtr<EventDelegate> = nullptr);
+    static KeyframeEffect* create(Element*, EffectModel*, const Timing&, Priority = DefaultPriority, EventDelegate* = nullptr);
     // Web Animations API Bindings constructors.
-    static PassRefPtrWillBeRawPtr<KeyframeEffect> create(Element*, const Vector<Dictionary>& keyframeDictionaryVector, double duration, ExceptionState&);
-    static PassRefPtrWillBeRawPtr<KeyframeEffect> create(Element*, const Vector<Dictionary>& keyframeDictionaryVector, const KeyframeEffectOptions& timingInput, ExceptionState&);
-    static PassRefPtrWillBeRawPtr<KeyframeEffect> create(Element*, const Vector<Dictionary>& keyframeDictionaryVector, ExceptionState&);
+    static KeyframeEffect* create(Element*, const Vector<Dictionary>& keyframeDictionaryVector, double duration, ExceptionState&);
+    static KeyframeEffect* create(Element*, const Vector<Dictionary>& keyframeDictionaryVector, const KeyframeEffectOptions& timingInput, ExceptionState&);
+    static KeyframeEffect* create(Element*, const Vector<Dictionary>& keyframeDictionaryVector, ExceptionState&);
 
     virtual ~KeyframeEffect();
+    void dispose();
 
     virtual bool isAnimation() const override { return true; }
 
     bool affects(PropertyHandle) const;
     const EffectModel* model() const { return m_model.get(); }
     EffectModel* model() { return m_model.get(); }
-    void setModel(PassRefPtrWillBeRawPtr<EffectModel> model) { m_model = model; }
+    void setModel(EffectModel* model) { m_model = model; }
     Priority priority() const { return m_priority; }
     Element* target() const { return m_target; }
 
@@ -103,11 +105,11 @@ protected:
     virtual double calculateTimeToEffectChange(bool forwards, double inheritedTime, double timeToNextIteration) const override;
 
 private:
-    KeyframeEffect(Element*, PassRefPtrWillBeRawPtr<EffectModel>, const Timing&, Priority, PassOwnPtrWillBeRawPtr<EventDelegate>);
+    KeyframeEffect(Element*, EffectModel*, const Timing&, Priority, EventDelegate*);
 
     RawPtrWillBeMember<Element> m_target;
-    RefPtrWillBeMember<EffectModel> m_model;
-    RawPtrWillBeMember<SampledEffect> m_sampledEffect;
+    Member<EffectModel> m_model;
+    Member<SampledEffect> m_sampledEffect;
 
     Priority m_priority;