Remove more oilpan.

sky/engine/core/rendering/RenderObjectChildList.cpp

 /*
  * Copyright (C) 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. 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
@@ skipping 15 matching lines @@
 
 #include "config.h"
 #include "core/rendering/RenderObjectChildList.h"
 
 #include "core/rendering/RenderObject.h"
 #include "core/rendering/RenderView.h"
 #include "core/rendering/style/RenderStyle.h"
 
 namespace blink {
 
-void RenderObjectChildList::trace(Visitor* visitor)
-{
-    visitor->trace(m_firstChild);
-    visitor->trace(m_lastChild);
-}
-
 void RenderObjectChildList::destroyLeftoverChildren()
 {
     while (firstChild()) {
         // Destroy any anonymous children remaining in the render tree, as well as implicit (shadow) DOM elements like those used in the engine-based text fields.
         // FIXME(sky): This should never happen now.
         if (firstChild()->node())
             firstChild()->node()->setRenderer(0);
         firstChild()->destroy();
     }
 }
@@ skipping 89 matching lines @@
 
     if (!owner->documentBeingDestroyed() && notifyRenderer)
         newChild->insertedIntoTree();
 
     newChild->setNeedsLayoutAndPrefWidthsRecalcAndFullPaintInvalidation();
     if (!owner->normalChildNeedsLayout())
         owner->setChildNeedsLayout(); // We may supply the static position for an absolute positioned child.
 }
 
 } // namespace blink