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

webkit/fileapi/file_writer_delegate.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_WRITER_DELEGATE_H_
 #define WEBKIT_FILEAPI_FILE_WRITER_DELEGATE_H_
 
 #include "base/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
-#include "base/message_loop_proxy.h"
 #include "base/platform_file.h"
 #include "base/time.h"
 #include "net/base/file_stream.h"
 #include "net/base/io_buffer.h"
 #include "net/url_request/url_request.h"
 #include "webkit/fileapi/file_system_path.h"
 
 namespace fileapi {
 
 class FileSystemOperation;
 class FileSystemOperationContext;
 class FileSystemQuotaUtil;
 
 class FileWriterDelegate : public net::URLRequest::Delegate {
  public:
   FileWriterDelegate(
       FileSystemOperation* write_operation,
       const FileSystemPath& path,
-      int64 offset,
-      scoped_refptr<base::MessageLoopProxy> proxy);
+      int64 offset);
   virtual ~FileWriterDelegate();
 
   void Start(base::PlatformFile file,
              net::URLRequest* request);
   base::PlatformFile file() {
     return file_;
   }
 
   virtual void OnReceivedRedirect(net::URLRequest* request,
                                   const GURL& new_url,
@@ skipping 22 matching lines @@
   void OnProgress(int bytes_read, bool done);
 
   FileSystemOperationContext* file_system_operation_context() const;
   FileSystemQuotaUtil* quota_util() const;
 
   FileSystemOperation* file_system_operation_;
   base::PlatformFile file_;
   FileSystemPath path_;
   int64 size_;
   int64 offset_;
-  scoped_refptr<base::MessageLoopProxy> proxy_;
   base::Time last_progress_event_time_;
   int bytes_written_backlog_;
   int bytes_written_;
   int bytes_read_;
   int64 total_bytes_written_;
   int64 allowed_bytes_to_write_;
   scoped_refptr<net::IOBufferWithSize> io_buffer_;
   scoped_refptr<net::DrainableIOBuffer> cursor_;
   scoped_ptr<net::FileStream> file_stream_;
   net::URLRequest* request_;
   base::WeakPtrFactory<FileWriterDelegate> weak_factory_;
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_FILE_WRITER_DELEGATE_H_