Implement Request.context for Fetch API

Source/modules/fetch/FetchRequestData.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "modules/fetch/FetchRequestData.h"
 
 #include "core/dom/ExecutionContext.h"
 #include "core/fetch/ResourceLoaderOptions.h"
 #include "core/loader/ThreadableLoader.h"
@@ skipping 10 matching lines @@
 }
 
 FetchRequestData* FetchRequestData::create(const WebServiceWorkerRequest& webRequest)
 {
     FetchRequestData* request = FetchRequestData::create();
     request->m_url = webRequest.url();
     request->m_method = webRequest.method();
     for (HTTPHeaderMap::const_iterator it = webRequest.headers().begin(); it != webRequest.headers().end(); ++it)
         request->m_headerList->append(it->key, it->value);
     request->m_blobDataHandle = webRequest.blobDataHandle();
+    request->setContext(webRequest.requestContext());
     request->m_referrer.setURL(webRequest.referrer());
     request->setMode(webRequest.mode());
     request->setCredentials(webRequest.credentialsMode());
     request->setMIMEType(request->m_headerList->extractMIMEType());
     return request;
 }
 
 FetchRequestData* FetchRequestData::clone() const
 {
     // TODO(yhirano): This method will be destructive.
@@ skipping 35 matching lines @@
     , m_responseTainting(BasicTainting)
 {
 }
 
 DEFINE_TRACE(FetchRequestData)
 {
     visitor->trace(m_headerList);
 }
 
 } // namespace blink