Roll ANGLE from 97013e85adfc to 2e9a7892232a (3 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/97013e85adfc..2e9a7892232a

2020-08-27 angle-autoroll@skia-public.iam.gserviceaccount.com Roll glslang from 983698bb34ec to 517f39eee46f (1 revision)
2020-08-27 angle-autoroll@skia-public.iam.gserviceaccount.com Roll Vulkan-Tools from dda8dabe9eb3 to c472fa2f0330 (4 revisions)
2020-08-27 angle-autoroll@skia-public.iam.gserviceaccount.com Roll SwiftShader from 622558b02e1a to 1f48854dae26 (3 revisions)

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 courtneygo@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: courtneygo@google.com
Change-Id: Id1de13f8212bc16b28da8785f33c1e85530b02b0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2379315
Reviewed-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@{#802178}