[oilpan] Handlify childrenChanged.

Source/core/svg/SVGFontFaceUriElement.cpp

 /*
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 53 matching lines @@
 }
 
 void SVGFontFaceUriElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
 {
     if (name == XLinkNames::hrefAttr)
         loadFont();
     else
         SVGElement::parseAttribute(name, value);
 }
 
-void SVGFontFaceUriElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
+void SVGFontFaceUriElement::childrenChanged(bool changedByParser, const Handle<Node>& beforeChange, const Handle<Node>& afterChange, int childCountDelta)
 {
     SVGElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
 
     if (!parentNode() || !parentNode()->hasTagName(font_face_srcTag))
         return;
     
     Handle<ContainerNode> grandparent = parentNode()->parentNode();
     if (grandparent && grandparent->hasTagName(font_faceTag))
         Handle<SVGFontFaceElement>::cast(grandparent)->rebuildFontFace();
 }
@@ skipping 19 matching lines @@
             m_cachedFont->addClient(this);
             m_cachedFont->beginLoadIfNeeded(cachedResourceLoader);
         }
     } else
         m_cachedFont = 0;
 }
 
 }
 
 #endif // ENABLE(SVG_FONTS)