[Streams] Pass WebDataConsumerHandle when the response arrives.

Source/core/xmlhttprequest/XMLHttpRequest.cpp

 /*
  *  Copyright (C) 2004, 2006, 2008 Apple Inc. All rights reserved.
  *  Copyright (C) 2005-2007 Alexey Proskuryakov <ap@webkit.org>
  *  Copyright (C) 2007, 2008 Julien Chaffraix <jchaffraix@webkit.org>
  *  Copyright (C) 2008, 2011 Google Inc. All rights reserved.
  *  Copyright (C) 2012 Intel Corporation
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
  *  License as published by the Free Software Foundation; either
@@ skipping 1446 matching lines @@
     if (m_uploadEventsAllowed)
         m_upload->dispatchProgressEvent(bytesSent, totalBytesToBeSent);
 
     if (bytesSent == totalBytesToBeSent && !m_uploadComplete) {
         m_uploadComplete = true;
         if (m_uploadEventsAllowed)
             m_upload->dispatchEventAndLoadEnd(EventTypeNames::load, true, bytesSent, totalBytesToBeSent);
     }
 }
 
-void XMLHttpRequest::didReceiveResponse(unsigned long identifier, const ResourceResponse& response)
+void XMLHttpRequest::didReceiveResponse(unsigned long identifier, const ResourceResponse& response, PassOwnPtr<WebDataConsumerHandle>)
 {
     WTF_LOG(Network, "XMLHttpRequest %p didReceiveResponse(%lu)", this, identifier);
 
     m_response = response;
     if (!m_mimeTypeOverride.isEmpty()) {
         m_response.setHTTPHeaderField("Content-Type", m_mimeTypeOverride);
         m_finalResponseCharset = extractCharsetFromMediaType(m_mimeTypeOverride);
     }
 
     if (m_finalResponseCharset.isEmpty())
@@ skipping 184 matching lines @@
     visitor->trace(m_responseDocument);
     visitor->trace(m_responseDocumentParser);
     visitor->trace(m_progressEventThrottle);
     visitor->trace(m_upload);
     visitor->trace(m_blobLoader);
     XMLHttpRequestEventTarget::trace(visitor);
     DocumentParserClient::trace(visitor);
 }
 
 } // namespace blink