Refactor following sync commit loop change

sync/internal_api/public/sessions/error_counters.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 SYNC_INTERNAL_API_PUBLIC_SESSIONS_ERROR_COUNTERS_H_
 #define SYNC_INTERNAL_API_PUBLIC_SESSIONS_ERROR_COUNTERS_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "sync/internal_api/public/util/syncer_error.h"
 #include "sync/protocol/sync_protocol_error.h"
 
 namespace browser_sync {
 namespace sessions {
 
 // Counters for various errors that can occur repeatedly during a sync session.
 // TODO(lipalani) : Rename this structure to Error.
 struct ErrorCounters {
   ErrorCounters();
 
   // Any protocol errors that we received during this sync session.
   SyncProtocolError sync_protocol_error;
 
   // Records the most recent results of PostCommit and GetUpdates commands.
   SyncerError last_download_updates_result;
-  SyncerError last_post_commit_result;
-  SyncerError last_process_commit_response_result;
+  SyncerError commit_result;
 };
 
 }  // namespace sessions
 }  // namespace browser_sync
 
 #endif  // SYNC_INTERNAL_API_PUBLIC_SESSIONS_ERROR_COUNTERS_H_