Revert 277929 "[fsp] Cleanup handling errors for operation reque..."

trunk/src/chrome/browser/chromeos/file_system_provider/operations/open_file.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/operations/open_file.h"
 
 #include <string>
 
 #include "chrome/common/extensions/api/file_system_provider.h"
 #include "chrome/common/extensions/api/file_system_provider_internal.h"
@@ skipping 46 matching lines @@
       values.Pass());
 }
 
 void OpenFile::OnSuccess(int request_id,
                          scoped_ptr<RequestValue> result,
                          bool has_more) {
   // File handle is the same as request id of the OpenFile operation.
   callback_.Run(request_id, base::File::FILE_OK);
 }
 
-void OpenFile::OnError(int /* request_id */,
-                       scoped_ptr<RequestValue> /* result */,
-                       base::File::Error error) {
+void OpenFile::OnError(int /* request_id */, base::File::Error error) {
   callback_.Run(0 /* file_handle */, error);
 }
 
 }  // namespace operations
 }  // namespace file_system_provider
 }  // namespace chromeos