Use a direct include of strings headers in cloud_print/.

cloud_print/virtual_driver/win/install/setup.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 <comdef.h>
 #include <iomanip>
 #include <windows.h>
 #include <winspool.h>
 #include <setupapi.h>  // Must be included after windows.h
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/file_version_info_win.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "base/process.h"
 #include "base/process_util.h"
-#include "base/string16.h"
-#include "base/string_util.h"
+#include "base/strings/string16.h"
+#include "base/strings/string_util.h"
 #include "base/win/registry.h"
 #include "base/win/scoped_handle.h"
 #include "base/win/windows_version.h"
 #include "cloud_print/common/win/cloud_print_utils.h"
 #include "cloud_print/common/win/install_utils.h"
 #include "cloud_print/virtual_driver/win/virtual_driver_consts.h"
 #include "cloud_print/virtual_driver/win/virtual_driver_helpers.h"
 #include "grit/virtual_driver_setup_resources.h"
 
 #include <strsafe.h>  // Must be after base headers to avoid deprecation
@@ skipping 511 matching lines @@
   LOG(INFO) << _com_error(retval).ErrorMessage() << " HRESULT=0x" <<
                std::setbase(16) << retval;
 
   // Installer is silent by default as required by Google Update.
   if (CommandLine::ForCurrentProcess()->HasSwitch("verbose")) {
     cloud_print::DisplayWindowsMessage(NULL, retval,
         cloud_print::LoadLocalString(IDS_DRIVER_NAME));
   }
   return retval;
 }