Oilpan: move RenderObjects off heap.

Source/core/rendering/RenderQuote.cpp

 /**
  * Copyright (C) 2011 Nokia Inc.  All rights reserved.
  * Copyright (C) 2012 Google 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 30 matching lines @@
 {
     setDocumentForAnonymous(node);
 }
 
 RenderQuote::~RenderQuote()
 {
     ASSERT(!m_attached);
     ASSERT(!m_next && !m_previous);
 }
 
-void RenderQuote::trace(Visitor* visitor)
-{
-    visitor->trace(m_next);
-    visitor->trace(m_previous);
-    RenderInline::trace(visitor);
-}
-
 void RenderQuote::willBeDestroyed()
 {
     detachQuote();
     RenderInline::willBeDestroyed();
 }
 
 void RenderQuote::willBeRemovedFromTree()
 {
     RenderInline::willBeRemovedFromTree();
     detachQuote();
@@ skipping 338 matching lines @@
             if (m_depth)
                 m_depth--;
             break;
         }
     }
     if (oldDepth != m_depth)
         updateText();
 }
 
 } // namespace blink