Roll ANGLE from 3f564fc76ea8 to ff38106d62fc (1 revision)

https://chromium.googlesource.com/angle/angle.git/+log/3f564fc76ea8..ff38106d62fc

2020-12-01 cclao@google.com Vulkan: Use specialization constant for halfRenderAreaWidth

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 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: ianelliott@google.com
Change-Id: I2f120b4897379388ec3eff2eae02d4d35f5d05dd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2566877Reviewed-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@{#832208}

DEPS

@@ -212,7 +212,7 @@ 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': '3f564fc76ea8a556d628517b055af85c27a60bc3',
+  'angle_revision': 'ff38106d62fca2e36ec2db1cd580b546fd53ae43',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.