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

Source/core/animation/animatable/AnimatableLengthPoint3D.h

Index: Source/core/animation/animatable/AnimatableLengthPoint3D.h
diff --git a/Source/core/animation/animatable/AnimatableLengthPoint3D.h b/Source/core/animation/animatable/AnimatableLengthPoint3D.h
index 527c6e6e87f935780eeda3e529fc1d05adf111e5..601a78fe2e1654f2ba754794115f9aadcd844cac 100644
--- a/Source/core/animation/animatable/AnimatableLengthPoint3D.h
+++ b/Source/core/animation/animatable/AnimatableLengthPoint3D.h
@@ -38,9 +38,9 @@ namespace blink {
 class AnimatableLengthPoint3D final : public AnimatableValue {
 public:
     virtual ~AnimatableLengthPoint3D() { }
-    static PassRefPtrWillBeRawPtr<AnimatableLengthPoint3D> create(PassRefPtrWillBeRawPtr<AnimatableValue> x, PassRefPtrWillBeRawPtr<AnimatableValue> y, PassRefPtrWillBeRawPtr<AnimatableValue> z)
+    static AnimatableLengthPoint3D* create(AnimatableValue* x, AnimatableValue* y, AnimatableValue* z)
     {
-        return adoptRefWillBeNoop(new AnimatableLengthPoint3D(x, y, z));
+        return new AnimatableLengthPoint3D(x, y, z);
     }
     const AnimatableValue* x() const { return m_x.get(); }
     const AnimatableValue* y() const { return m_y.get(); }
@@ -49,10 +49,10 @@ public:
     DECLARE_VIRTUAL_TRACE();
 
 protected:
-    virtual PassRefPtrWillBeRawPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const override;
+    virtual AnimatableValue* interpolateTo(const AnimatableValue*, double fraction) const override;
 
 private:
-    AnimatableLengthPoint3D(PassRefPtrWillBeRawPtr<AnimatableValue> x, PassRefPtrWillBeRawPtr<AnimatableValue> y, PassRefPtrWillBeRawPtr<AnimatableValue> z)
+    AnimatableLengthPoint3D(AnimatableValue* x, AnimatableValue* y, AnimatableValue* z)
         : m_x(x)
         , m_y(y)
         , m_z(z)
@@ -61,9 +61,9 @@ private:
     virtual AnimatableType type() const override { return TypeLengthPoint3D; }
     virtual bool equalTo(const AnimatableValue*) const override;
 
-    RefPtrWillBeMember<AnimatableValue> m_x;
-    RefPtrWillBeMember<AnimatableValue> m_y;
-    RefPtrWillBeMember<AnimatableValue> m_z;
+    Member<AnimatableValue> m_x;
+    Member<AnimatableValue> m_y;
+    Member<AnimatableValue> m_z;
 };
 
 DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableLengthPoint3D, isLengthPoint3D());