Make FileSystemOperation::Write take closure-friendly parameters

webkit/browser/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_BROWSER_FILEAPI_FILE_WRITER_DELEGATE_H_
 #define WEBKIT_BROWSER_FILEAPI_FILE_WRITER_DELEGATE_H_
 
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 17 matching lines @@
     SUCCESS_COMPLETED,
     ERROR_WRITE_STARTED,
     ERROR_WRITE_NOT_STARTED,
   };
 
   typedef base::Callback<void(base::PlatformFileError result,
                               int64 bytes,
                               WriteProgressStatus write_status)>
       DelegateWriteCallback;
 
-  FileWriterDelegate(
-      const DelegateWriteCallback& write_callback,
-      scoped_ptr<FileStreamWriter> file_writer);
+  FileWriterDelegate(scoped_ptr<FileStreamWriter> file_writer);
   virtual ~FileWriterDelegate();
 
-  void Start(scoped_ptr<net::URLRequest> request);
+  void Start(scoped_ptr<net::URLRequest> request,
+             const DelegateWriteCallback& write_callback);
 
   // Cancels the current write operation.  This will synchronously or
   // asynchronously call the given write callback (which may result in
   // deleting this).
   void Cancel();
 
   virtual void OnReceivedRedirect(net::URLRequest* request,
                                   const GURL& new_url,
                                   bool* defer_redirect) OVERRIDE;
   virtual void OnAuthRequired(net::URLRequest* request,
@@ skipping 38 matching lines @@
   int bytes_written_;
   int bytes_read_;
   scoped_refptr<net::IOBufferWithSize> io_buffer_;
   scoped_refptr<net::DrainableIOBuffer> cursor_;
   scoped_ptr<net::URLRequest> request_;
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_BROWSER_FILEAPI_FILE_WRITER_DELEGATE_H_