Roll src/third_party/angle de97fb4ac4c6..81ee4d29192d (1 commits)

https://chromium.googlesource.com/angle/angle.git/+log/de97fb4ac4c6..81ee4d29192d

git log de97fb4ac4c6..81ee4d29192d --date=short --first-parent --format='%ad %ae %s'
2020-01-03 shrekshao@google.com Workaround EXT_texture_norm16 for OpenGL ES drivers

Created with:
  gclient setdep -r src/third_party/angle@81ee4d29192d

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/+/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
Bug: chromium:1000354
Tbr: courtneygo@google.com
Change-Id: Ifc921d860865b2f832a277e64dc73107c5b3b2a8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1986895Reviewed-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@{#728283}

DEPS

@@ -193,7 +193,7 @@ 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': 'de97fb4ac4c620af943fc0ecaddb3dd50621689b',
+  'angle_revision': '81ee4d29192dcd0bdef05d39829d7c37e231b0e2',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.