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

chrome/browser/sync_file_system/drive_file_sync_service_sync_unittest.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 "chrome/browser/sync_file_system/drive_file_sync_service.h"
 
 #include <algorithm>
 
 #include "base/format_macros.h"
 #include "base/message_loop.h"
 #include "base/rand_util.h"
 #include "base/stringprintf.h"
-#include "base/utf_string_conversions.h"
+#include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/sync_file_system/drive/fake_api_util.h"
 #include "chrome/browser/sync_file_system/drive_metadata_store.h"
 #include "chrome/browser/sync_file_system/fake_remote_change_processor.h"
 #include "chrome/browser/sync_file_system/sync_file_system.pb.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/test/test_browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "webkit/browser/fileapi/syncable/syncable_file_system_util.h"
 
 namespace sync_file_system {
@@ skipping 412 matching lines @@
 TEST_F(DriveFileSyncServiceSyncTest, DeleteDirectoryTest) {
   std::string kDir = "dir title";
   SyncEvent sync_event[] = {
     CreateRemoteDirectoryAddEvent(kDir),
     CreateRemoteFileDeleteEvent(kDir),
   };
   RunTest(CreateTestCase(sync_event));
 }
 
 }  // namespace sync_file_system