Use KURL when constructing ResourceRequest

Source/core/svg/SVGUseElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
  * Copyright (C) 2011 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  * Copyright (C) 2012 University of Szeged
  * Copyright (C) 2012 Renata Hodovan <reni@webkit.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 181 matching lines @@
         if (renderer)
             RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
         return;
     }
 
     if (SVGURIReference::isKnownAttribute(attrName)) {
         bool isExternalReference = isExternalURIReference(hrefString(), document());
         if (isExternalReference) {
             KURL url = document().completeURL(hrefString());
             if (url.hasFragmentIdentifier()) {
-                FetchRequest request(ResourceRequest(url.string()), localName());
+                FetchRequest request(ResourceRequest(url), localName());
                 setDocumentResource(document().fetcher()->fetchSVGDocument(request));
             }
         } else {
             setDocumentResource(0);
         }
 
         invalidateShadowTree();
 
         return;
     }
@@ skipping 537 matching lines @@
         m_resource->addClient(this);
 }
 
 void SVGUseElement::trace(Visitor* visitor)
 {
     visitor->trace(m_targetElementInstance);
     SVGGraphicsElement::trace(visitor);
 }
 
 }