Move RenderSVGResource::cast() to RenderSVGResourceContainer

Source/core/rendering/svg/RenderSVGResource.h

 /*
  * Copyright (C) Research In Motion Limited 2009-2010. 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 41 matching lines @@
     virtual ~RenderSVGResource() { }
 
     virtual void removeAllClientsFromCache(bool markForInvalidation = true) = 0;
     virtual void removeClientFromCache(RenderObject*, bool markForInvalidation = true) = 0;
 
     virtual bool applyResource(RenderObject*, RenderStyle*, GraphicsContext*, RenderSVGResourceModeFlags);
     virtual void postApplyResource(GraphicsContext*) { }
 
     virtual RenderSVGResourceType resourceType() const = 0;
 
-    template<class Renderer>
-    Renderer* cast()
-    {
-        if (Renderer::s_resourceType == resourceType())
-            return static_cast<Renderer*>(this);
-
-        return 0;
-    }
-
     // Helper utilities used in the render tree to access resources used for painting shapes/text (gradients & patterns & solid colors only)
     // If hasFallback gets set to true, the sharedSolidPaintingResource is set to a fallback color.
     static RenderSVGResource* requestPaintingResource(RenderSVGResourceMode, RenderObject*, const RenderStyle*, bool& hasFallback);
     static RenderSVGResourceSolidColor* sharedSolidPaintingResource();
 
     static void markForLayoutAndParentResourceInvalidation(RenderObject*, bool needsLayout = true);
 };
 
 #define DEFINE_RENDER_SVG_RESOURCE_TYPE_CASTS(thisType, typeName) \
     DEFINE_TYPE_CASTS(thisType, RenderSVGResource, resource, resource->resourceType() == typeName, resource.resourceType() == typeName)
 
 }
 
 #endif