... instead of by pointer. This makes a bit more
obvious it's always non-null and therefore safe to
unconditionally dereference inside of the method.
Change-Id: Ibd975c7a0bb5122d825fb57c9e477c4719e29bff
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/203148
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>