Remove tons of OILPAN.

sky/engine/core/animation/AnimationTimeline.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 40 matching lines @@
     DEFINE_WRAPPERTYPEINFO();
 public:
     class PlatformTiming {
 
     public:
         // Calls AnimationTimeline's wake() method after duration seconds.
         virtual void wakeAfter(double duration) = 0;
         virtual void cancelWake() = 0;
         virtual void serviceOnNextFrame() = 0;
         virtual ~PlatformTiming() { }
-        virtual void trace(Visitor*) { }
     };
 
     static PassRefPtr<AnimationTimeline> create(Document*, PassOwnPtr<PlatformTiming> = nullptr);
     ~AnimationTimeline();
 
     void serviceAnimations(TimingUpdateReason);
 
     // Creates a player attached to this timeline, but without a start time.
     AnimationPlayer* createAnimationPlayer(AnimationNode*);
     AnimationPlayer* play(AnimationNode*);
@@ skipping 18 matching lines @@
 
     void setOutdatedAnimationPlayer(AnimationPlayer*);
     bool hasOutdatedAnimationPlayer() const;
 
     Document* document() { return m_document.get(); }
 #if !ENABLE(OILPAN)
     void detachFromDocument();
 #endif
     void wake();
 
-    void trace(Visitor*);
-
 protected:
     AnimationTimeline(Document*, PassOwnPtr<PlatformTiming>);
 
 private:
     RawPtr<Document> m_document;
     // AnimationPlayers which will be updated on the next frame
     // i.e. current, in effect, or had timing changed
     HashSet<RefPtr<AnimationPlayer> > m_playersNeedingUpdate;
     HashSet<RawPtr<AnimationPlayer> > m_players;
 
@@ skipping 10 matching lines @@
         {
             ASSERT(m_timeline);
         }
 
         virtual void wakeAfter(double duration) override;
         virtual void cancelWake() override;
         virtual void serviceOnNextFrame() override;
 
         void timerFired(Timer<AnimationTimelineTiming>*) { m_timeline->wake(); }
 
-        virtual void trace(Visitor*) override;
-
     private:
         RawPtr<AnimationTimeline> m_timeline;
         Timer<AnimationTimelineTiming> m_timer;
     };
 
     friend class AnimationAnimationTimelineTest;
 };
 
 } // namespace blink
 
 #endif