Refine toRenderSVGResourceContainer()

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 94 matching lines @@
     // Stash all resources into a HashSet for the ease of traversing.
     HashSet<RenderSVGResourceContainer*> localResources;
     m_resources->buildSetOfResources(localResources);
     ASSERT(!localResources.isEmpty());
 
     // Add all parent resource containers to the HashSet.
     HashSet<RenderSVGResourceContainer*> parentResources;
     RenderObject* parent = m_renderer->parent();
     while (parent) {
         if (parent->isSVGResourceContainer())
-            parentResources.add(parent->toRenderSVGResourceContainer());
+            parentResources.add(toRenderSVGResourceContainer(parent));
         parent = parent->parent();
     }
 
 #if DEBUG_CYCLE_DETECTION > 0
     fprintf(stderr, "\nDetecting wheter any resources references any of following objects:\n");
     {
         fprintf(stderr, "Local resources:\n");
         HashSet<RenderSVGResourceContainer*>::iterator end = localResources.end();
         for (HashSet<RenderSVGResourceContainer*>::iterator it = localResources.begin(); it != end; ++it)
             fprintf(stderr, "|> %s: object=%p (node=%p)\n", (*it)->renderName(), *it, (*it)->node());
 
         fprintf(stderr, "Parent resources:\n");
         end = parentResources.end();
         for (HashSet<RenderSVGResourceContainer*>::iterator it = parentResources.begin(); it != end; ++it)
             fprintf(stderr, "|> %s: object=%p (node=%p)\n", (*it)->renderName(), *it, (*it)->node());
     }
 #endif
 
     // Build combined set of local and parent resources.
     m_allResources = localResources;
     HashSet<RenderSVGResourceContainer*>::iterator end = parentResources.end();
     for (HashSet<RenderSVGResourceContainer*>::iterator it = parentResources.begin(); it != end; ++it)
         m_allResources.add(*it);
 
     // If we're a resource, add ourselves to the HashSet.
     if (m_renderer->isSVGResourceContainer())
-        m_allResources.add(m_renderer->toRenderSVGResourceContainer());
+        m_allResources.add(toRenderSVGResourceContainer(m_renderer));
 
     ASSERT(!m_allResources.isEmpty());
 
     // The job of this function is to determine wheter any of the 'resources' associated with the given 'renderer'
     // references us (or wheter any of its kids references us) -> that's a cycle, we need to find and break it.
     end = localResources.end();
     for (HashSet<RenderSVGResourceContainer*>::iterator it = localResources.begin(); it != end; ++it) {
         RenderSVGResourceContainer* resource = *it;
         if (parentResources.contains(resource) || resourceContainsCycles(resource))
             breakCycle(resource);
@@ skipping 46 matching lines @@
         ASSERT(resourceLeadingToCycle == m_resources->clipper());
         m_resources->resetClipper();
         break;
     case SolidColorResourceType:
         ASSERT_NOT_REACHED();
         break;
     }
 }
 
 }