Detect sync server communication errors

chrome/browser/sync/sessions/status_controller.h

 // Copyright (c) 2011 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.
 
 // StatusController handles all counter and status related number crunching and
 // state tracking on behalf of a SyncSession.  It 'controls' the model data
 // defined in session_state.h.  The most important feature of StatusController
 // is the ScopedModelSafetyRestriction. When one of these is active, the
 // underlying data set exposed via accessors is swapped out to the appropriate
 // set for the restricted ModelSafeGroup behind the scenes.  For example, if
@@ skipping 210 matching lines @@
   void set_num_successful_bookmark_commits(int value);
   void increment_num_successful_commits();
   void increment_num_successful_bookmark_commits();
   void increment_num_updates_downloaded_by(int value);
   void increment_num_tombstone_updates_downloaded_by(int value);
   void set_types_needing_local_migration(syncable::ModelTypeSet types);
   void set_unsynced_handles(const std::vector<int64>& unsynced_handles);
   void increment_num_local_overwrites();
   void increment_num_server_overwrites();
   void set_sync_protocol_error(const SyncProtocolError& error);
+  void set_last_download_updates_result(const SyncerError result);
+  void set_last_post_commit_result(const SyncerError result);
+  void set_last_process_commit_response_result(const SyncerError result);
 
   void set_commit_set(const OrderedCommitSet& commit_set);
   void update_conflict_sets_built(bool built);
   void update_conflicts_resolved(bool resolved);
   void reset_conflicts_resolved();
   void set_items_committed();
 
   void UpdateStartTime();
 
   void set_debug_info_sent();
@@ skipping 54 matching lines @@
   }
  private:
   StatusController* status_;
   DISALLOW_COPY_AND_ASSIGN(ScopedModelSafeGroupRestriction);
 };
 
 }
 }
 
 #endif  // CHROME_BROWSER_SYNC_SESSIONS_STATUS_CONTROLLER_H_