Remove wstring from l10n_util. Part 8, the last part....

chrome/browser/chromeos/login/user_controller_unittest.cc

 // Copyright (c) 2010 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/chromeos/login/user_controller.h"
 
 #include "app/l10n_util.h"
+#include "base/utf_string_conversions.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
 #include "grit/generated_resources.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace chromeos {
 
 TEST(UserControllerTest, GetNameTooltip) {
   UserController guest_user_controller(NULL, false);
-  EXPECT_EQ(l10n_util::GetString(IDS_ADD_USER),
+  EXPECT_EQ(UTF16ToWide(l10n_util::GetStringUTF16(IDS_ADD_USER)),
             guest_user_controller.GetNameTooltip());
 
   UserController new_user_controller(NULL, true);
-  EXPECT_EQ(l10n_util::GetString(IDS_GO_INCOGNITO_BUTTON),
+  EXPECT_EQ(UTF16ToWide(l10n_util::GetStringUTF16(IDS_GO_INCOGNITO_BUTTON)),
             new_user_controller.GetNameTooltip());
 
   UserManager::User existing_user;
   existing_user.set_email("someordinaryuser@domain.com");
   UserController existing_user_controller(NULL, existing_user);
   EXPECT_EQ(L"someordinaryuser (domain.com)",
             existing_user_controller.GetNameTooltip());
 }
 
 }  // namespace chromeos