add 'slow' prefix to RenderObject's firstChild() / lastChild() methods

Source/core/rendering/svg/SVGResourcesCycleSolver.cpp

 /*
  * Copyright (C) Research In Motion Limited 2010. 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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 51 matching lines @@
         HashSet<RenderSVGResourceContainer*>::iterator end = resourceSet.end();
         for (HashSet<RenderSVGResourceContainer*>::iterator it = resourceSet.begin(); it != end; ++it) {
             if (m_allResources.contains(*it))
                 return true;
         }
     }
 
     // Then operate on the child resources of the given renderer.
     // <marker id="a"> <path marker-start="url(#b)"/> ...
     // <marker id="b"> <path marker-start="url(#a)"/> ...
-    for (RenderObject* child = renderer->firstChild(); child; child = child->nextSibling()) {
+    for (RenderObject* child = renderer->slowFirstChild(); child; child = child->nextSibling()) {
         SVGResources* childResources = SVGResourcesCache::cachedResourcesForRenderObject(child);
         if (!childResources)
             continue;
 
         // A child of the given 'resource' contains resources.
         HashSet<RenderSVGResourceContainer*> childSet;
         childResources->buildSetOfResources(childSet);
 
         // Walk all child resources and check wheter they reference any resource contained in the resources set.
         HashSet<RenderSVGResourceContainer*>::iterator end = childSet.end();
@@ skipping 116 matching lines @@
         ASSERT(resourceLeadingToCycle == m_resources->clipper());
         m_resources->resetClipper();
         break;
     case SolidColorResourceType:
         ASSERT_NOT_REACHED();
         break;
     }
 }
 
 }