Remove tons of OILPAN.

sky/engine/core/dom/StyleElement.cpp

 /*
  * Copyright (C) 2006, 2007 Rob Buis
  * Copyright (C) 2008 Apple, Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 146 matching lines @@
             m_sheet = document.styleEngine()->createSheet(e, text, startPosition, m_createdByParser);
             m_sheet->setMediaQueries(mediaQueries.release());
             m_loading = false;
         }
     }
 
 
     document.styleResolverMayHaveChanged();
 }
 
-void StyleElement::trace(Visitor* visitor)
-{
-    visitor->trace(m_sheet);
 }
-
-}