ChromeOS: This CL moves chromeos/login/user_names* to user_mananger.

chrome/browser/ui/webui/options/chromeos/guest_mode_options_browsertest.cc

 // Copyright 2016 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 "chrome/browser/ui/webui/options/chromeos/guest_mode_options_browsertest.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/ui/webui/options/options_ui_browsertest.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/testing_profile.h"
 #include "chromeos/chromeos_switches.h"
-#include "chromeos/login/user_names.h"
 #include "components/signin/core/account_id/account_id.h"
+#include "components/user_manager/user_names.h"
 
 GuestModeOptionsUIBrowserTest::GuestModeOptionsUIBrowserTest() {}
 
 GuestModeOptionsUIBrowserTest::~GuestModeOptionsUIBrowserTest() {}
 
 void GuestModeOptionsUIBrowserTest::SetUpCommandLine(
     base::CommandLine* command_line) {
   command_line->AppendSwitch(chromeos::switches::kGuestSession);
   command_line->AppendSwitchASCII(
       chromeos::switches::kLoginUser,
-      chromeos::login::GuestAccountId().GetUserEmail());
+      user_manager::GuestAccountId().GetUserEmail());
   command_line->AppendSwitchASCII(chromeos::switches::kLoginProfile,
                                   TestingProfile::kTestUserProfileDir);
   command_line->AppendSwitch(switches::kIncognito);
 }