Uninstall a non-syncfs extension should not cause Token loss

chrome/browser/sync_file_system/drive_file_sync_service.cc

Index: chrome/browser/sync_file_system/drive_file_sync_service.cc
diff --git a/chrome/browser/sync_file_system/drive_file_sync_service.cc b/chrome/browser/sync_file_system/drive_file_sync_service.cc
index a7666fdea7ea226add48b826c3ee8e84539c750f..386160a1a8aa023c2ca02e2470d820c9dd1d32cd 100644
--- a/chrome/browser/sync_file_system/drive_file_sync_service.cc
+++ b/chrome/browser/sync_file_system/drive_file_sync_service.cc
@@ -500,9 +500,12 @@ void DriveFileSyncService::UninstallOrigin(
 
   // An empty resource_id indicates either one of following two cases:
   // 1) origin is not in metadata_store_ because the extension was never
-  //    run and thus no origin directory on the remote drive was created.
+  //    run or it's not managed by this service, and thus no
+  //    origin directory on the remote drive was created.
   // 2) origin or sync root folder is deleted on Drive.
   if (resource_id.empty()) {
+    token->ResetTask(FROM_HERE);
+    NotifyTaskDone(last_operation_status_, token.Pass());
     callback.Run(SYNC_STATUS_OK);
     return;
   }