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

Source/core/animation/animatable/AnimatableLengthPoint.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 20 matching lines @@
 #ifndef AnimatableLengthPoint_h
 #define AnimatableLengthPoint_h
 
 #include "core/animation/animatable/AnimatableValue.h"
 
 namespace blink {
 
 class AnimatableLengthPoint final : public AnimatableValue {
 public:
     ~AnimatableLengthPoint() override { }
-    static PassRefPtrWillBeRawPtr<AnimatableLengthPoint> create(PassRefPtrWillBeRawPtr<AnimatableValue> x, PassRefPtrWillBeRawPtr<AnimatableValue> y)
+    static AnimatableLengthPoint* create(AnimatableValue* x, AnimatableValue* y)
     {
-        return adoptRefWillBeNoop(new AnimatableLengthPoint(x, y));
+        return new AnimatableLengthPoint(x, y);
     }
-    const AnimatableValue* x() const { return m_x.get(); }
-    const AnimatableValue* y() const { return m_y.get(); }
+    const AnimatableValue* x() const { return m_x; }
+    const AnimatableValue* y() const { return m_y; }
 
     DECLARE_VIRTUAL_TRACE();
 
 protected:
-    PassRefPtrWillBeRawPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const override;
+    AnimatableValue* interpolateTo(const AnimatableValue*, double fraction) const override;
 
 private:
-    AnimatableLengthPoint(PassRefPtrWillBeRawPtr<AnimatableValue> x, PassRefPtrWillBeRawPtr<AnimatableValue> y)
+    AnimatableLengthPoint(AnimatableValue* x, AnimatableValue* y)
         : m_x(x)
         , m_y(y)
     {
     }
     AnimatableType type() const override { return TypeLengthPoint; }
     bool equalTo(const AnimatableValue*) const override;
 
-    RefPtrWillBeMember<AnimatableValue> m_x;
-    RefPtrWillBeMember<AnimatableValue> m_y;
+    Member<AnimatableValue> m_x;
+    Member<AnimatableValue> m_y;
 };
 
 DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableLengthPoint, isLengthPoint());
 
 } // namespace blink
 
 #endif // AnimatableLengthPoint_h