Change webkit/{fileapi,quota} code to use TaskRunner.

webkit/fileapi/file_system_url_request_job_factory.h

 // 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.
 
 #ifndef WEBKIT_FILEAPI_FILE_SYSTEM_URL_REQUEST_JOB_FACTORY_H_
 #define WEBKIT_FILEAPI_FILE_SYSTEM_URL_REQUEST_JOB_FACTORY_H_
 
 #include "net/url_request/url_request_job_factory.h"
 
 namespace base {
 class MessageLoopProxy;
 }  // namespace base
 
 namespace fileapi {
 
 class FileSystemContext;
 
 // |context|'s lifetime should exceed the lifetime of the ProtocolHandler.
 // Currently, this is only used by ProfileIOData which owns |context| and the
 // ProtocolHandler.
 net::URLRequestJobFactory::ProtocolHandler*
-CreateFileSystemProtocolHandler(FileSystemContext* context,
-                                base::MessageLoopProxy* file_loop_proxy);
+CreateFileSystemProtocolHandler(FileSystemContext* context);
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_FILE_SYSTEM_URL_REQUEST_JOB_FACTORY_H_