Fix WeakPtrFactory member order in net/url_request/

net/url_request/url_fetcher_response_writer.h

 // Copyright (c) 2013 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 NET_URL_REQUEST_URL_FETCHER_RESPONSE_WRITER_H_
 #define NET_URL_REQUEST_URL_FETCHER_RESPONSE_WRITER_H_
 
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
@@ skipping 101 matching lines @@
                          base::FilePath* temp_file_path,
                          bool success);
 
   // Callback which gets the result of FileStream::Open.
   void DidOpenFile(const CompletionCallback& callback,
                    int result);
 
   // Callback which gets the result of closing a file.
   void CloseComplete(const CompletionCallback& callback, int result);
 
-  // Callbacks are created for use with base::FileUtilProxy.
-  base::WeakPtrFactory<URLFetcherFileWriter> weak_factory_;
-
   // Task runner on which file operations should happen.
   scoped_refptr<base::SequencedTaskRunner> file_task_runner_;
 
   // Destination file path.
   // Initialize() creates a temporary file if this variable is empty.
   base::FilePath file_path_;
 
   // True when this instance is responsible to delete the file at |file_path_|.
   bool owns_file_;
 
   scoped_ptr<FileStream> file_stream_;
 
+  // Callbacks are created for use with base::FileUtilProxy.
+  base::WeakPtrFactory<URLFetcherFileWriter> weak_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(URLFetcherFileWriter);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_FETCHER_RESPONSE_WRITER_H_