These were missed during the removal of NPAPI.

Change-Id: Ie6233a755cd8f2995692fb8790bd65055d100251
Reviewed-on: https://gerrit.libreoffice.org/21015Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
Tested-by: Julien Nabet <serval2412@yahoo.fr>