Roll ANGLE from 7f0e7d0d262a to c0ef8ccfcd8b (3 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/7f0e7d0d262a..c0ef8ccfcd8b

2021-01-12 angle-autoroll@skia-public.iam.gserviceaccount.com Roll SwiftShader from 348ba200aa29 to 3549479dc4cc (3 revisions)
2021-01-12 jonahr@google.com GL: Clean up Display code related to multithreading
2021-01-12 syoussefi@chromium.org Reland "Use is_apple instead of is_mac and is_ios everywhere"

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 timvp@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: chromium:1161513
Tbr: timvp@google.com
Change-Id: I9e34c9eac5ecf17cf015d835d1ee22139ea8d91e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2623431Reviewed-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@{#842647}

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': '7f0e7d0d262aa0ee71c862846c72f737cbbfca04',
+  'angle_revision': 'c0ef8ccfcd8bd983dc3d7469e810ad133b80b4cd',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.