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

Source/core/animation/animatable/AnimatableLength.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 21 matching lines @@
 #define AnimatableLength_h
 
 #include "core/CoreExport.h"
 #include "core/animation/animatable/AnimatableValue.h"
 #include "platform/Length.h"
 
 namespace blink {
 
 class CORE_EXPORT AnimatableLength final : public AnimatableValue {
 public:
-    static PassRefPtrWillBeRawPtr<AnimatableLength> create(const Length& length, float zoom)
+    static AnimatableLength* create(const Length& length, float zoom)
     {
-        return adoptRefWillBeNoop(new AnimatableLength(length, zoom));
+        return new AnimatableLength(length, zoom);
     }
     Length length(float zoom, ValueRange) const;
 
     bool hasSameUnits(const AnimatableLength* other) const
     {
         return m_hasPixels == other->m_hasPixels && m_hasPercent == other->m_hasPercent;
     }
 
     DEFINE_INLINE_VIRTUAL_TRACE() { AnimatableValue::trace(visitor); }
 
 protected:
-    virtual PassRefPtrWillBeRawPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const override;
+    virtual AnimatableValue* interpolateTo(const AnimatableValue*, double fraction) const override;
 
 private:
-    static PassRefPtrWillBeRawPtr<AnimatableLength> create(double pixels, double percent, bool hasPixels, bool hasPercent)
+    static AnimatableLength* create(double pixels, double percent, bool hasPixels, bool hasPercent)
     {
-        return adoptRefWillBeNoop(new AnimatableLength(pixels, percent, hasPixels, hasPercent));
+        return new AnimatableLength(pixels, percent, hasPixels, hasPercent);
     }
     AnimatableLength(const Length&, float zoom);
     AnimatableLength(double pixels, double percent, bool hasPixels, bool hasPercent)
         : m_pixels(pixels)
         , m_percent(percent)
         , m_hasPixels(hasPixels)
         , m_hasPercent(hasPercent)
     {
         ASSERT(m_hasPixels || m_hasPercent);
     }
     virtual AnimatableType type() const override { return TypeLength; }
     virtual bool equalTo(const AnimatableValue*) const override;
 
     double m_pixels;
     double m_percent;
     bool m_hasPixels;
     bool m_hasPercent;
 };
 
 DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableLength, isLength());
 
 } // namespace blink
 
 #endif // AnimatableLength_h