Use a direct include of strings headers in cloud_print/.

cloud_print/service/win/cloud_print_service_config.cc

 // Copyright 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 <atlbase.h>
 #include <atlapp.h>  // NOLINT
 
 #include "base/at_exit.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/message_loop.h"
-#include "base/string16.h"
+#include "base/strings/string16.h"
 #include "base/threading/thread.h"
 #include "chrome/common/chrome_constants.h"
 #include "cloud_print/common/win/cloud_print_utils.h"
 #include "cloud_print/resources.h"
 #include "cloud_print/service/service_state.h"
 #include "cloud_print/service/win/chrome_launcher.h"
 #include "cloud_print/service/win/service_controller.h"
 #include "cloud_print/service/win/service_utils.h"
 #include "cloud_print/service/win/setup_listener.h"
 
@@ skipping 418 matching lines @@
   scoped_refptr<SetupDialog> dialog(new SetupDialog());
   dialog->Create(NULL);
   dialog->ShowWindow(SW_SHOW);
   scoped_ptr<SetupDialog::MessageFilter> filter(
       new SetupDialog::MessageFilter(dialog));
   loop.SetMessageFilter(filter.Pass());
 
   loop.Run();
   return 0;
 }