With the refactoring from previous commits in place, it's clear that all callers pass a non-null SfxBindings* param. Switch the param to a reference, to make that clear and prepare for further refactoring. Change-Id: Id9f1487dba4b84860f9afa52ff9ffb4dd7b1d2c6 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/208387 Tested-by: Jenkins Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>