Correct EmbeddedTestServer usage in chromeos tests.

chrome/browser/chromeos/login/kiosk_browsertest.cc

 // Copyright (c) 2013 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 <memory>
 #include <vector>
 
 #include "ash/common/wallpaper/wallpaper_controller.h"
 #include "ash/common/wallpaper/wallpaper_controller_observer.h"
 #include "ash/common/wm_shell.h"
@@ skipping 2263 matching lines @@
   // Terminate the app.
   window->GetBaseWindow()->Close();
   content::RunAllPendingInMessageLoop();
 }
 
 IN_PROC_BROWSER_TEST_F(KioskEnterpriseTest, PrivateStore) {
   set_test_app_id(kTestEnterpriseKioskApp);
 
   const char kPrivateStoreUpdate[] = "/private_store_update";
   net::EmbeddedTestServer private_server;
-  ASSERT_TRUE(private_server.Start());
 
   // |private_server| serves crx from test data dir.
   base::FilePath test_data_dir;
   PathService::Get(chrome::DIR_TEST_DATA, &test_data_dir);
   private_server.ServeFilesFromDirectory(test_data_dir);
+  ASSERT_TRUE(private_server.InitializeAndListen());
 
   FakeCWS private_store;
   private_store.InitAsPrivateStore(&private_server, kPrivateStoreUpdate);
   private_store.SetUpdateCrx(kTestEnterpriseKioskApp,
                              std::string(kTestEnterpriseKioskApp) + ".crx",
                              "1.0.0");
 
+  private_server.StartAcceptingConnections();
+
   // Configure kTestEnterpriseKioskApp in device policy.
   ConfigureKioskAppInPolicy(kTestEnterpriseAccountId,
                             kTestEnterpriseKioskApp,
                             private_server.GetURL(kPrivateStoreUpdate).spec());
 
   // Meta should be able to be extracted from crx before launching.
   KioskAppManager* manager = KioskAppManager::Get();
   AppDataLoadWaiter waiter(manager, kTestEnterpriseKioskApp, std::string());
   waiter.WaitForAppData();
 
@@ skipping 81 matching lines @@
   content::WindowedNotificationObserver(
       chrome::NOTIFICATION_KIOSK_AUTOLAUNCH_WARNING_VISIBLE,
       content::NotificationService::AllSources()).Wait();
 
   // Wait for the wallpaper to load.
   WaitForWallpaper();
   EXPECT_TRUE(wallpaper_loaded());
 }
 
 }  // namespace chromeos