Refactor following sync commit loop change

sync/sessions/session_state.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.
 
 // The 'sessions' namespace comprises all the pieces of state that are
 // combined to form a SyncSession instance. In that way, it can be thought of
 // as an extension of the SyncSession type itself. Session scoping gives
 // context to things like "conflict progress", "update progress", etc, and the
 // separation this file provides allows clients to only include the parts they
 // need rather than the entire session stack.
@@ skipping 74 matching lines @@
 // 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;
 };
 
 // An immutable snapshot of state from a SyncSession.  Convenient to use as
 // part of notifications as it is inherently thread-safe.
 // TODO(zea): if copying this all over the place starts getting expensive,
 // consider passing around immutable references instead of values.
 // Default copy and assign welcome.
 class SyncSessionSnapshot {
  public:
   SyncSessionSnapshot();
@@ skipping 225 matching lines @@
   ~PerModelSafeGroupState();
 
   UpdateProgress update_progress;
   ConflictProgress conflict_progress;
 };
 
 }  // namespace sessions
 }  // namespace browser_sync
 
 #endif  // SYNC_SESSIONS_SESSION_STATE_H_