Use a direct include of strings headers in cloud_print/.

cloud_print/service/win/cloud_print_service.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 <atlbase.h>
 #include <security.h>
 
 #include <iomanip>
 #include <iostream>
 
 #include "base/at_exit.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/guid.h"
 #include "base/logging.h"
 #include "base/path_service.h"
-#include "base/string_util.h"
+#include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/scoped_handle.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
 #include "cloud_print/common/win/cloud_print_utils.h"
 #include "cloud_print/service/service_constants.h"
 #include "cloud_print/service/service_state.h"
 #include "cloud_print/service/service_switches.h"
 #include "cloud_print/service/win/chrome_launcher.h"
 #include "cloud_print/service/win/service_controller.h"
@@ skipping 378 matching lines @@
                        logging::APPEND_TO_OLD_LOG_FILE,
                        logging::DISABLE_DCHECK_FOR_NON_OFFICIAL_RELEASE_BUILDS);
 
   logging::SetMinLogLevel(
       CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnableLogging) ?
       logging::LOG_INFO : logging::LOG_FATAL);
 
   return _AtlModule.WinMain(0);
 }