now that Bitmap supports transparency
Tweak a couple of unit tests. Since some backends use
pre-multiplied alpha, if A == 0, then RGB will also
be zero.
Had to comment out one unit test (see comment in unit test).
Change-Id: I45e4b5ea9f21e3c5bc74992ca4ecee1897212821
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/189022
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Tested-by: Jenkins
Noel Grandin
c2fedef548