Use a direct include of strings headers in cloud_print/.

cloud_print/service/win/service_utils.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 "cloud_print/service/win/service_utils.h"
 #include "google_apis/gaia/gaia_switches.h"
 
 #include <windows.h>
 #include <security.h>  // NOLINT
 
 #include "base/command_line.h"
-#include "base/string_util.h"
+#include "base/strings/string_util.h"
 #include "chrome/common/chrome_switches.h"
 
 string16 GetLocalComputerName() {
   DWORD size = 0;
   string16 result;
   ::GetComputerName(NULL, &size);
   result.resize(size);
   if (result.empty())
     return result;
   if (!::GetComputerName(&result[0], &size))
@@ skipping 30 matching lines @@
     switches::kEnableLogging,
     switches::kIgnoreUrlFetcherCertRequests,
     switches::kLsoUrl,
     switches::kV,
   };
   destination->CopySwitchesFrom(*CommandLine::ForCurrentProcess(),
                                 kSwitchesToCopy,
                                 arraysize(kSwitchesToCopy));
 }