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

Source/core/svg/SVGFontFaceElement.cpp

 /*
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2008 Apple Inc. 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.
  *
@@ skipping 268 matching lines @@
     if (describesParentFont) {
         m_fontElement = toSVGFontElement(parentNode());
 
         list = CSSValueList::createCommaSeparated();
         list->append(CSSFontFaceSrcValue::createLocal(fontFamily()));
     } else {
         m_fontElement = 0;
         // we currently ignore all but the last src element, alternatively we could concat them
         for (Node* child = lastChild(); child && !list; child = child->previousSibling()) {
             if (child->hasTagName(font_face_srcTag)) {
-                list = static_cast<SVGFontFaceSrcElement*>(child)->srcValue();
+                list = toSVGFontFaceSrcElement(child)->srcValue();
                 break;
             }
         }
     }
 
     if (!list || !list->length())
         return;
 
     // Parse in-memory CSS rules
     m_fontFaceRule->mutableProperties()->addParsedProperty(CSSProperty(CSSPropertySrc, list));
@@ skipping 42 matching lines @@
 
 void SVGFontFaceElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
 {
     SVGElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
     rebuildFontFace();
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(SVG_FONTS)