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

Source/core/svg/SVGTextPositioningElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Rob Buis <buis@kde.org>
  *
  * 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,
@@ skipping 130 matching lines @@
     ASSERT(node);
     ASSERT(node->isSVGElement());
 
     if (!node->hasTagName(SVGNames::textTag)
 #if ENABLE(SVG_FONTS)
         && !node->hasTagName(SVGNames::altGlyphTag)
 #endif
         && !node->hasTagName(SVGNames::tspanTag))
         return 0;
 
-    return static_cast<SVGTextPositioningElement*>(node);
+    return toSVGTextPositioningElement(node);

[Stephen Chennney, 2014/01/10 12:32:53]

This is a change in behavior. The previous code cast anything that was a
textTag, altGlyphTag or tspanTag. Your code also requires those things to have
attr names. Something is wrong.

[gyuyoung-inactive, 2014/01/12 04:37:31]

yes, tosVGTextPositionElement() has wrong behavior.

 }
 
 }