Use a direct include of strings headers in chrome/browser/extensions/, part 4.

chrome/browser/extensions/user_script_master.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/extensions/user_script_master.h"
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/pickle.h"
 #include "base/stl_util.h"
-#include "base/string_util.h"
+#include "base/strings/string_util.h"
 #include "base/threading/thread.h"
 #include "base/version.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/extensions/image_loader.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/extensions/api/i18n/default_locale_handler.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_file_util.h"
@@ skipping 424 matching lines @@
 
   base::SharedMemoryHandle handle_for_process;
   if (!shared_memory->ShareToProcess(handle, &handle_for_process))
     return;  // This can legitimately fail if the renderer asserts at startup.
 
   if (base::SharedMemory::IsHandleValid(handle_for_process))
     process->Send(new ExtensionMsg_UpdateUserScripts(handle_for_process));
 }
 
 }  // namespace extensions