Remove tons of OILPAN.

sky/engine/core/rendering/RenderObject.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 166 matching lines @@
 {
 #if ENABLE(OILPAN)
     ASSERT(m_didCallDestroy);
 #endif
 #ifndef NDEBUG
     renderObjectCounter.decrement();
 #endif
     --s_instanceCount;
 }
 
-void RenderObject::trace(Visitor* visitor)
-{
-    visitor->trace(m_node);
-    visitor->trace(m_parent);
-    visitor->trace(m_previous);
-    visitor->trace(m_next);
-}
-
 String RenderObject::debugName() const
 {
     StringBuilder name;
     name.append(renderName());
 
     if (Node* node = this->node()) {
         name.append(' ');
         name.append(node->debugName());
     }
 
@@ skipping 2491 matching lines @@
 {
     if (object1) {
         const blink::RenderObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showRenderTreeAndMark(object1, "*", object2, "-", 0);
     }
 }
 
 #endif