Pass implementation object to supplemental classes by reference

Source/core/svg/SVGURIReference.h

 /*
  * Copyright (C) 2004, 2005, 2008, 2009 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005 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 33 matching lines @@
         // Fragment-only URIs are always internal
         if (uri.startsWith('#'))
             return false;
 
         // If the URI matches our documents URL, we're dealing with a local reference.
         KURL url = document.completeURL(uri);
         return !equalIgnoringFragmentIdentifier(url, document.url());
     }
 
     // SVGURIReference JS API.
-    static SVGAnimatedString* href(SVGURIReference* object) { return object->href(); }
+    static SVGAnimatedString* href(SVGURIReference& object) { return object.href(); }
 
     SVGAnimatedString* href() const { return m_href.get(); }
     const String& hrefString() const { return m_href->currentValue()->value(); }
 
     bool parseAttribute(const QualifiedName&, const AtomicString& value, SVGParsingError&);
 
 protected:
     explicit SVGURIReference(SVGElement*);
 
 private:
     RefPtr<SVGAnimatedString> m_href;
 };
 
 } // namespace WebCore
 
 #endif // SVGURIReference_h