[Sync] Remove SyncEngine::UnregisterInvalidationIds

components/browser_sync/profile_sync_service.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/browser_sync/profile_sync_service.h"
 
 #include <stddef.h>
 
 #include <cstddef>
 #include <map>
@@ skipping 786 matching lines @@
 
   NotifyObservers();
 
   // Mark this as a clean shutdown(without crash).
   sync_prefs_.SetCleanShutdown(true);
 }
 
 void ProfileSyncService::StopImpl(SyncStopDataFate data_fate) {
   switch (data_fate) {
     case KEEP_DATA:
-      // TODO(maxbogue): Investigate whether this logic can/should be moved
-      // into ShutdownImpl or the sync engine itself.
-      if (HasSyncingEngine()) {
-        engine_->UnregisterInvalidationIds();
-      }
       ShutdownImpl(syncer::STOP_SYNC);
       break;
     case CLEAR_DATA:
       // Clear prefs (including SyncSetupHasCompleted) before shutting down so
       // PSS clients don't think we're set up while we're shutting down.
       sync_prefs_.ClearPreferences();
       ClearUnrecoverableError();
       ShutdownImpl(syncer::DISABLE_SYNC);
       break;
   }
@@ skipping 1792 matching lines @@
 
   DCHECK(startup_controller_->IsSetupInProgress());
   startup_controller_->SetSetupInProgress(false);
 
   if (IsEngineInitialized())
     ReconfigureDatatypeManager();
   NotifyObservers();
 }
 
 }  // namespace browser_sync