code: public void stopSearch(int tag) {
  		String queryId = mTagToId.get(tag);
  		mTagToId.delete(tag);
  		if (queryId != null && mCallbacks.remove(queryId) != null) {
  			mSearchInterface.stopSearch(queryId);
  		}
  	}
docs: Stops a previously registered search request performed by the
  application. The application must provide the tag it registered the
  search with. The callback associated to the search does not receive any
  further notification.
  
  @param tag
  - the tag used to register the search.