Create CrxInstaller directly in WebstoreInstaller

chrome/browser/performance_monitor/performance_monitor_browsertest.cc

 // Copyright (c) 2012 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/command_line.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/threading/sequenced_worker_pool.h"
@@ skipping 456 matching lines @@
   ExtensionService* extension_service =
       browser()->profile()->GetExtensionService();
 
   extensions::CrxInstaller* crx_installer = NULL;
 
   // Create an observer to wait for the update to finish.
   content::WindowedNotificationObserver windowed_observer(
       chrome::NOTIFICATION_CRX_INSTALLER_DONE,
       content::Source<extensions::CrxInstaller>(crx_installer));
   ASSERT_TRUE(extension_service->
-      UpdateExtension(extension->id(), path_v2_, true, GURL(), &crx_installer));
+      UpdateExtension(extension->id(), path_v2_, true, &crx_installer));
   windowed_observer.Wait();
 
   extension = extension_service->GetExtensionById(
       extension_infos[0].id, false); // don't include disabled extensions.
 
   // The total series of events for this process will be:
   //   Extension Install - install version 1
   //   Extension Install - install version 2
   //   Extension Update  - signal the udate to version 2
   // We push back the corresponding ExtensionBasicInfos.
@@ skipping 300 matching lines @@
       test_server()->GetURL(std::string("files/").append("title2.html")));
 
   GatherStatistics();
 
   metrics = GetStats(METRIC_NETWORK_BYTES_READ);
   ASSERT_EQ(2u, metrics.size());
   EXPECT_GE(metrics[1].value, page1_size + page2_size);
 }
 
 }  // namespace performance_monitor