[Streams] Add "useStreamOnResponse" on WebURLRequest.

Source/platform/exported/WebURLRequest.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 281 matching lines @@
 bool WebURLRequest::downloadToFile() const
 {
     return m_private->m_resourceRequest->downloadToFile();
 }
 
 void WebURLRequest::setDownloadToFile(bool downloadToFile)
 {
     m_private->m_resourceRequest->setDownloadToFile(downloadToFile);
 }
 
+bool WebURLRequest::useStreamOnResponse() const
+{
+    return m_private->m_resourceRequest->useStreamOnResponse();
+}
+
+void WebURLRequest::setUseStreamOnResponse(bool useStreamOnResponse)
+{
+    m_private->m_resourceRequest->setUseStreamOnResponse(useStreamOnResponse);
+}
+
 bool WebURLRequest::skipServiceWorker() const
 {
     return m_private->m_resourceRequest->skipServiceWorker();
 }
 
 void WebURLRequest::setSkipServiceWorker(bool skipServiceWorker)
 {
     m_private->m_resourceRequest->setSkipServiceWorker(skipServiceWorker);
 }
 
@@ skipping 63 matching lines @@
     // Subclasses may call this directly so a self-assignment check is needed
     // here as well as in the public assign method.
     if (m_private == p)
         return;
     if (m_private)
         m_private->dispose();
     m_private = p;
 }
 
 } // namespace blink