private void stopAutocomplete(boolean clear){
  if (mAutocomplete != null)   mAutocomplete.stop(clear);
  cancelPendingAutocompleteStart();
}

private void stopAutocomplete ( boolean clear ) { if ( mAutocomplete != null ) mAutocomplete . stop ( clear ) ; cancelPendingAutocompleteStart ( ) ; }
signals the autocomplete controller to stop generating omnibox suggestions and cancels the queued task to start the autocomplete controller , if any .
