[fsp] Fix aborting in File Stream Writer.

chrome/browser/chromeos/file_system_provider/fileapi/file_stream_writer.cc

 // Copyright 2014 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/chromeos/file_system_provider/fileapi/file_stream_writer.h"
 
 #include "base/debug/trace_event.h"
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/chromeos/file_system_provider/fileapi/provider_async_file_util.h"
 #include "chrome/browser/chromeos/file_system_provider/mount_path_util.h"
@@ skipping 44 matching lines @@
   }
 
   // Closes a file. Ignores result, since outlives the caller. Must be called on
   // UI thread.
   void CloseFileOnUIThread() {
     DCHECK_CURRENTLY_ON(BrowserThread::UI);
     if (file_system_.get() && file_handle_ != -1) {
       // Closing a file must not be aborted, since we could end up on files
       // which are never closed.
       file_system_->CloseFile(file_handle_, base::Bind(&EmptyStatusCallback));
-      abort_callback_ = ProvidedFileSystemInterface::AbortCallback();
     }
   }
 
   // Requests writing bytes to the file. In case of either success or a failure
   // |callback| is executed. Must be called on UI thread.
   void WriteFileOnUIThread(
       scoped_refptr<net::IOBuffer> buffer,
       int64 offset,
       int length,
       const storage::AsyncFileUtil::StatusCallback& callback) {
@@ skipping 254 matching lines @@
                  current_offset_,
                  buffer_length,
                  base::Bind(&FileStreamWriter::OnWriteFileCompleted,
                             weak_ptr_factory_.GetWeakPtr(),
                             buffer_length,
                             callback)));
 }
 
 }  // namespace file_system_provider
 }  // namespace chromeos