media/gpu/VAAPI: Enable HW JPEG decoding on Grunt.

This change removes the "Mesa Gallium driver" from the blacklist in the vaapi
JPEG decoder.

TEST=ran VDA tests on Grunt

Bug: 828119
Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
Change-Id: I1100cbebcc7f2a2eca3c6109fa120db764543a95
Reviewed-on: https://chromium-review.googlesource.com/c/1256462
Commit-Queue: David Staessens <dstaessens@chromium.org>
Reviewed-by: Pawel Osciak <posciak@chromium.org>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#599559}
1 file changed