Fix handling of undeletion within the syncer.

chrome/browser/sync/sessions/status_controller.h

 // Copyright (c) 2009 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 55 matching lines @@
     return &GetOrCreateModelSafeGroupState(true,
         group_restriction_)->update_progress;
   }
   // Some unrestricted, non-ModelChangingSyncerCommand commands need to store
   // meta information about updates.
   UpdateProgress* GetUnrestrictedUpdateProgress(ModelSafeGroup group) {
     return &GetOrCreateModelSafeGroupState(false, group)->update_progress;
   }
 
   // ClientToServer messages.
+  const ClientToServerMessage& commit_message() {
+    return shared_.commit_message;
+  }
   ClientToServerMessage* mutable_commit_message() {
     return &shared_.commit_message;
   }
   const ClientToServerResponse& commit_response() const {
     return shared_.commit_response;
   }
   ClientToServerResponse* mutable_commit_response() {
     return &shared_.commit_response;
   }
   const syncable::MultiTypeTimeStamp& updates_request_parameters() const {
@@ skipping 187 matching lines @@
   }
  private:
   StatusController* status_;
   DISALLOW_COPY_AND_ASSIGN(ScopedModelSafeGroupRestriction);
 };
 
 }
 }
 
 #endif  // CHROME_BROWSER_SYNC_SESSIONS_STATUS_CONTROLLER_H_