Remove tons of OILPAN.

sky/engine/core/animation/InertAnimation.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 26 matching lines @@
 
 namespace blink {
 
 class InertAnimation final : public AnimationNode {
 public:
     static PassRefPtr<InertAnimation> create(PassRefPtr<AnimationEffect>, const Timing&, bool paused);
     PassOwnPtr<Vector<RefPtr<Interpolation> > > sample(double inheritedTime);
     AnimationEffect* effect() const { return m_effect.get(); }
     bool paused() const { return m_paused; }
 
-    virtual void trace(Visitor*);
-
 protected:
     virtual void updateChildrenAndEffects() const override { }
     virtual double calculateTimeToEffectChange(bool forwards, double inheritedTime, double timeToNextIteration) const override;
 
 private:
     InertAnimation(PassRefPtr<AnimationEffect>, const Timing&, bool paused);
     RefPtr<AnimationEffect> m_effect;
     bool m_paused;
 };
 
 } // namespace blink
 
 #endif