[oilpan] Handlify childrenChanged.

Source/core/svg/SVGFontFaceSrcElement.cpp

 /*
  * Copyright (C) 2007 Eric Seidel <eric@webkit.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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 43 matching lines @@
         if (child->hasTagName(font_face_uriTag))
             srcValue = static_cast<SVGFontFaceUriElement*>(child)->srcValue();
         else if (child->hasTagName(font_face_nameTag))
             srcValue = static_cast<SVGFontFaceNameElement*>(child)->srcValue();
         if (srcValue && srcValue->resource().length())
             list->append(srcValue);
     }
     return list;
 }
 
-void SVGFontFaceSrcElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
+void SVGFontFaceSrcElement::childrenChanged(bool changedByParser, const Handle<Node>& beforeChange, const Handle<Node>& afterChange, int childCountDelta)
 {
     SVGElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
     if (parentNode() && parentNode()->hasTagName(font_faceTag))
         Handle<SVGFontFaceElement>::cast(parentNode())->rebuildFontFace();
 }
 
 }
 
 #endif // ENABLE(SVG_FONTS)