Roll ANGLE from 9b7a77b08d8a to 6cced91b3d92 (2 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/9b7a77b08d8a..6cced91b3d92

2022-02-11 cnorthrop@google.com FrameCapture: Remove destroyed contexts from share group
2022-02-11 cclao@google.com Vulkan: Fix two bugs exposed by moving mEmptyBuffer to suballocation

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/angle-chromium-autoroll
Please CC ianelliott@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in ANGLE: https://bugs.chromium.org/p/angleproject/issues/entry
To file a bug in Chromium: https://bugs.chromium.org/p/chromium/issues/entry

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

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;luci.chromium.try:linux-swangle-try-x64;luci.chromium.try:win-swangle-try-x86
Bug: None
Tbr: ianelliott@google.com
Test: Test: Mortal Kombat MEC
Change-Id: I5782b260f70bde498d8d82639a0bf91e54546f8b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3457755
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#970242}