Fix referrer policy handling in service workers

content/browser/service_worker/service_worker_browsertest.cc

 // 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 "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/fileapi/chrome_blob_storage_context.h"
@@ skipping 529 matching lines @@
   }
 
   void FetchOnIOThread(const base::Closure& done,
                        bool* prepare_result,
                        FetchResult* result) {
     ASSERT_TRUE(BrowserThread::CurrentlyOn(BrowserThread::IO));
     ServiceWorkerFetchRequest request(
         embedded_test_server()->GetURL("/service_worker/empty.html"),
         "GET",
         ServiceWorkerHeaderMap(),
-        GURL(""),
+        Referrer(),
         false);
     version_->SetStatus(ServiceWorkerVersion::ACTIVATED);
     version_->DispatchFetchEvent(
         request,
         CreatePrepareReceiver(prepare_result),
         CreateResponseReceiver(
             BrowserThread::UI, done, blob_context_.get(), result));
   }
 
   void StopOnIOThread(const base::Closure& done,
@@ skipping 408 matching lines @@
   const base::string16 kOKTitle2(base::ASCIIToUTF16("OK_2"));
   const base::string16 kFailTitle2(base::ASCIIToUTF16("FAIL_2"));
   content::TitleWatcher title_watcher2(shell()->web_contents(), kOKTitle2);
   title_watcher2.AlsoWaitForTitle(kFailTitle2);
 
   NavigateToURL(shell(), embedded_test_server()->GetURL(kConfirmPageUrl));
   EXPECT_EQ(kOKTitle2, title_watcher2.WaitAndGetTitle());
 }
 
 }  // namespace content