Refine toRenderSVGResourceContainer()

Source/core/rendering/svg/RenderSVGResourceContainer.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 91 matching lines @@
         return;
 
     m_isInvalidating = true;
     bool needsLayout = mode == LayoutAndBoundariesInvalidation;
     bool markForInvalidation = mode != ParentOnlyInvalidation;
 
     HashSet<RenderObject*>::iterator end = m_clients.end();
     for (HashSet<RenderObject*>::iterator it = m_clients.begin(); it != end; ++it) {
         RenderObject* client = *it;
         if (client->isSVGResourceContainer()) {
-            client->toRenderSVGResourceContainer()->removeAllClientsFromCache(markForInvalidation);
+            toRenderSVGResourceContainer(client)->removeAllClientsFromCache(markForInvalidation);
             continue;
         }
 
         if (markForInvalidation)
             markClientForInvalidation(client, mode);
 
         RenderSVGResource::markForLayoutAndParentResourceInvalidation(client, needsLayout);
     }
 
     markAllClientLayersForInvalidation();
@@ skipping 109 matching lines @@
     if (!object->isSVGShape())
         return resourceTransform;
 
     SVGGraphicsElement* element = toSVGGraphicsElement(object->node());
     AffineTransform transform = element->getScreenCTM(SVGLocatable::DisallowStyleUpdate);
     transform *= resourceTransform;
     return transform;
 }
 
 }