Use a direct include of strings headers in chrome_frame/.

chrome_frame/simple_resource_loader.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_frame/simple_resource_loader.h"
 
 #include <atlbase.h>
 
 #include <algorithm>
 
 #include "base/base_paths.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/i18n/rtl.h"
 #include "base/memory/singleton.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/i18n.h"
 #include "base/win/windows_version.h"
 #include "chrome_frame/policy_settings.h"
 #include "ui/base/resource/data_pack.h"
 
 namespace {
 
 const wchar_t kLocalesDirName[] = L"Locales";
 
@@ skipping 234 matching lines @@
 
 // static
 std::wstring SimpleResourceLoader::Get(int message_id) {
   SimpleResourceLoader* loader = SimpleResourceLoader::GetInstance();
   return loader->GetLocalizedResource(message_id);
 }
 
 HMODULE SimpleResourceLoader::GetResourceModuleHandle() {
   return locale_dll_handle_;
 }