Add shutdown notification and service refs to SyncServiceObserver.

components/password_manager/sync/browser/password_data_type_controller.cc

 // 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.
 
 #include "components/password_manager/sync/browser/password_data_type_controller.h"
 
 #include "base/bind.h"
 #include "base/metrics/histogram.h"
 #include "components/password_manager/core/browser/password_store.h"
 #include "components/sync/driver/sync_client.h"
@@ skipping 25 matching lines @@
     return false;
   return password_store_->ScheduleTask(task);
 }
 
 bool PasswordDataTypeController::StartModels() {
   DCHECK(CalledOnValidThread());
   DCHECK_EQ(MODEL_STARTING, state());
 
   sync_client_->GetSyncService()->AddObserver(this);
 
-  OnStateChanged();
+  OnStateChanged(sync_client_->GetSyncService());
 
   return !!password_store_.get();
 }
 
 void PasswordDataTypeController::StopModels() {
   DCHECK(CalledOnValidThread());
   sync_client_->GetSyncService()->RemoveObserver(this);
 }
 
-void PasswordDataTypeController::OnStateChanged() {
+void PasswordDataTypeController::OnStateChanged(syncer::SyncService* sync) {
   DCHECK(CalledOnValidThread());
   state_changed_callback_.Run();
 }
 
 }  // namespace browser_sync