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

Source/modules/serviceworkers/Request.cpp

Index: Source/modules/serviceworkers/Request.cpp
diff --git a/Source/modules/serviceworkers/Request.cpp b/Source/modules/serviceworkers/Request.cpp
index 50d5304bf7dabee4a4f7a937f1177f011688f31b..7504b3b18dd6f44184a254e330b40d3937a33cf3 100644
--- a/Source/modules/serviceworkers/Request.cpp
+++ b/Source/modules/serviceworkers/Request.cpp
@@ -18,7 +18,6 @@
 #include "platform/network/ResourceRequest.h"
 #include "platform/weborigin/Referrer.h"
 #include "public/platform/WebServiceWorkerRequest.h"
-#include "public/platform/WebURLRequest.h"
 
 namespace WebCore {
 
@@ -256,15 +255,6 @@ String Request::credentials() const
     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);