[fsp] Fix aborting in File Stream Writer.

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

Index: chrome/browser/chromeos/file_system_provider/fileapi/file_stream_writer.cc
diff --git a/chrome/browser/chromeos/file_system_provider/fileapi/file_stream_writer.cc b/chrome/browser/chromeos/file_system_provider/fileapi/file_stream_writer.cc
index 3b22b83db23f1df9f193fd38902db4702a6c7b7a..4cf3847ffcd5def44e7655e1aa3312dd45e67566 100644
--- a/chrome/browser/chromeos/file_system_provider/fileapi/file_stream_writer.cc
+++ b/chrome/browser/chromeos/file_system_provider/fileapi/file_stream_writer.cc
@@ -62,7 +62,6 @@ class FileStreamWriter::OperationRunner
       // 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();
     }
   }