GitLab

https://chromium.googlesource.com/external/khronosgroup/webgl.git/+log/d0fcf3d..a503e42

Tbr: kbr@chromium.org
Bug: 1099955,1107994,1078330,1108044
Bug: 1058160,1100834,890539, 1108086
Bug: angleproject:4849, angleproject:4807, angleproject:4754
Change-Id: I1765c384d2f6fb4bf4ba08e8858ba58e8d32e561
Cq-Include-Trybots: luci.chromium.try:win_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux-angle-rel;luci.chromium.try:win-angle-rel-32;luci.chromium.try:win-angle-rel-64
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2310835
Commit-Queue: Shrek Shao <shrekshao@google.com>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#790706}