Use a direct include of strings headers in chrome/browser/chromeos/.

chrome/browser/chromeos/login/user.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 "chrome/browser/chromeos/login/user.h"
 
 #include "base/logging.h"
-#include "base/stringprintf.h"
+#include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/chromeos/login/default_user_images.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
 #include "grit/theme_resources.h"
 #include "ui/base/resource/resource_bundle.h"
 
 namespace chromeos {
 
 namespace {
 
@@ skipping 275 matching lines @@
 PublicAccountUser::PublicAccountUser(const std::string& email) : User(email) {
 }
 
 PublicAccountUser::~PublicAccountUser() {}
 
 User::UserType PublicAccountUser::GetType() const {
   return USER_TYPE_PUBLIC_ACCOUNT;
 }
 
 }  // namespace chromeos