Roll ANGLE from dea86294537c to 8b4990bbd621 (1 revision)

https://chromium.googlesource.com/angle/angle.git/+log/dea86294537c..8b4990bbd621

2020-12-08 cnorthrop@google.com Capture/Replay: Fix capture of GL_EXT_debug_label

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 syoussefi@google.com on the revert to ensure that a human
is aware of the problem.

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/master/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-asan;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: syoussefi@google.com
Test: Test: Seven Deadly Sins MEC
Change-Id: Ied2726619c579c00aa6aa0049a69c20e826267d6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2578101Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#834538}

DEPS

@@ -211,7 +211,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling ANGLE
   # and whatever else without interference from each other.
-  'angle_revision': 'dea86294537c612e1f0d72d9b29b7ecb1a76dbd3',
+  'angle_revision': '8b4990bbd6217138d30e19f5309560cc6e2592a0',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.