Convert SVG <text> and descendants to use RenderObject::isChildAllowed

Source/core/svg/SVGAltGlyphElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Torch Mobile (Beijing) Co. Ltd. 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 57 matching lines @@
 void SVGAltGlyphElement::setFormat(const AtomicString&, ExceptionState& exceptionState)
 {
     exceptionState.throwDOMException(NoModificationAllowedError, ExceptionMessages::readOnly());
 }
 
 const AtomicString& SVGAltGlyphElement::format() const
 {
     return fastGetAttribute(SVGNames::formatAttr);
 }
 
-bool SVGAltGlyphElement::childShouldCreateRenderer(const Node& child) const
-{
-    if (child.isTextNode())
-        return true;
-    return false;
-}
-
 RenderObject* SVGAltGlyphElement::createRenderer(RenderStyle*)
 {
     return new RenderSVGTSpan(this);
 }
 
 bool SVGAltGlyphElement::hasValidGlyphElements(Vector<AtomicString>& glyphNames) const
 {
     AtomicString target;
     Element* element = targetElementFromIRIString(getAttribute(XLinkNames::hrefAttr), document(), &target);
     if (!element)
         return false;
 
     if (element->hasTagName(SVGNames::glyphTag)) {
         glyphNames.append(target);
         return true;
     }
 
     if (element->hasTagName(SVGNames::altGlyphDefTag)
         && toSVGAltGlyphDefElement(element)->hasValidGlyphElements(glyphNames))
         return true;
 
     return false;
 }
 
 }
 
 #endif