Use a direct include of utf_string_conversions.h in chrome/browser/, part 3.

chrome/browser/profiles/gaia_info_update_service_unittest.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 "chrome/browser/profiles/gaia_info_update_service.h"
 
 #include "base/prefs/pref_service.h"
-#include "base/utf_string_conversions.h"
+#include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile_downloader.h"
 #include "chrome/browser/profiles/profile_info_cache.h"
 #include "chrome/browser/profiles/profile_info_cache_unittest.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "chrome/test/base/testing_profile.h"
 #include "chrome/test/base/testing_profile_manager.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "ui/gfx/image/image.h"
@@ skipping 177 matching lines @@
 TEST_F(GAIAInfoUpdateServiceTest, LogIn) {
   profile()->GetPrefs()
       ->SetString(prefs::kGoogleServicesUsername, std::string());
   GAIAInfoUpdateServiceMock service(profile());
 
   // Log in.
   EXPECT_CALL(service, Update());
   profile()->GetPrefs()->SetString(prefs::kGoogleServicesUsername,
                                    "pat@example.com");
 }