Remove tons of OILPAN.

sky/engine/core/editing/FrameSelection.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 192 matching lines @@
     FloatRect bounds(bool clipToVisibleContent = true) const;
 
     void revealSelection(const ScrollAlignment& = ScrollAlignment::alignCenterIfNeeded, RevealExtentOption = DoNotRevealExtent);
     void setSelectionFromNone();
 
     void setShouldShowBlockCursor(bool);
 
     // VisibleSelection::ChangeObserver interface.
     virtual void didChangeVisibleSelection() override;
 
-    virtual void trace(Visitor*) override;
-
 private:
     explicit FrameSelection(LocalFrame*);
 
     enum EPositionType { START, END, BASE, EXTENT };
 
     void respondToNodeModification(Node&, bool baseRemoved, bool extentRemoved, bool startRemoved, bool endRemoved);
     TextDirection directionOfEnclosingBlock();
     TextDirection directionOfSelection();
 
     VisiblePosition positionForPlatform(bool isGetStart) const;
@@ skipping 75 matching lines @@
 }
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showTree(const blink::FrameSelection&);
 void showTree(const blink::FrameSelection*);
 #endif
 
 #endif // FrameSelection_h