Generate toSVGFooElement() for SVGFELight|AnimateMotion|FontFaceSrc|TextPositioningElement

Source/core/svg/SVGFELightElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
  * Copyright (C) 2005 Oliver Hunt <oliver@nerget.com>
  *
  * 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.
  *
@@ skipping 49 matching lines @@
 SVGFELightElement::SVGFELightElement(const QualifiedName& tagName, Document& document)
     : SVGElement(tagName, document)
     , m_specularExponent(1)
 {
     registerAnimatedPropertiesForSVGFELightElement();
 }
 
 SVGFELightElement* SVGFELightElement::findLightElement(const SVGElement* svgElement)
 {
     for (Node* node = svgElement->firstChild(); node; node = node->nextSibling()) {
-        if (node->hasTagName(SVGNames::feDistantLightTag)
-            || node->hasTagName(SVGNames::fePointLightTag)
-            || node->hasTagName(SVGNames::feSpotLightTag)) {
-            return static_cast<SVGFELightElement*>(node);
-        }
+        if (isSVGFELightElement(*node))
+            return toSVGFELightElement(node);
     }
     return 0;
 }
 
 PassRefPtr<LightSource> SVGFELightElement::findLightSource(const SVGElement* svgElement)
 {
     SVGFELightElement* lightNode = findLightElement(svgElement);
     if (!lightNode)
         return 0;
     return lightNode->lightSource();
@@ skipping 123 matching lines @@
     if (!changedByParser) {
         if (ContainerNode* parent = parentNode()) {
             RenderObject* renderer = parent->renderer();
             if (renderer && renderer->isSVGResourceFilterPrimitive())
                 RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
         }
     }
 }
 
 }