[ServiceWorker] Make fetch() method better conformance with the spec.

Source/modules/serviceworkers/Request.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 "Request.h"
 
 #include "bindings/core/v8/Dictionary.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/fetch/CrossOriginAccessControl.h"
 #include "core/fetch/ResourceLoaderOptions.h"
 #include "core/loader/ThreadableLoader.h"
 #include "core/xml/XMLHttpRequest.h"
 #include "modules/serviceworkers/FetchManager.h"
 #include "modules/serviceworkers/RequestInit.h"
 #include "platform/NotImplemented.h"
 #include "platform/network/HTTPParsers.h"
 #include "platform/network/ResourceRequest.h"
 #include "platform/weborigin/Referrer.h"
 #include "public/platform/WebServiceWorkerRequest.h"
-#include "public/platform/WebURLRequest.h"
 
 namespace blink {
 
 namespace {
 
 PassRefPtrWillBeRawPtr<Request> createRequestWithRequestData(PassRefPtrWillBeRawPtr<FetchRequestData> request, const RequestInit& init, FetchRequestData::Mode mode, FetchRequestData::Credentials credentials, ExceptionState& exceptionState)
 {
     // "6. Let |mode| be |init|'s mode member if it is present, and
     // |fallbackMode| otherwise."
     // "7. If |mode| is non-null, set |request|'s mode to |mode|."
@@ skipping 217 matching lines @@
         return "omit";
     case FetchRequestData::SameOriginCredentials:
         return "same-origin";
     case FetchRequestData::IncludeCredentials:
         return "include";
     }
     ASSERT_NOT_REACHED();
     return "";
 }
 
-PassOwnPtr<ResourceRequest> Request::createResourceRequest() const
-{
-    OwnPtr<ResourceRequest> request = adoptPtr(new ResourceRequest(url()));
-    request->setRequestContext(blink::WebURLRequest::RequestContextFetch);
-    request->setHTTPMethod("GET");
-    // FIXME: Fill more info.
-    return request.release();
-}
-
 void Request::trace(Visitor* visitor)
 {
     visitor->trace(m_request);
     visitor->trace(m_headers);
 }
 
 } // namespace blink