Roll ANGLE from 6ee18c2d01f6 to c81da1c809fe (1 revision)

https://chromium.googlesource.com/angle/angle.git/+log/6ee18c2d01f6..c81da1c809fe

2020-06-26 syoussefi@chromium.org Vulkan: Avoid double-copy when generating mipmap

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 cwallez@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: cwallez@google.com
Change-Id: I4a7f7cc9ed730387e9b44ea244a422a4880670de
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2269717Reviewed-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@{#782867}

DEPS

@@ -200,7 +200,7 @@ 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': '6ee18c2d01f6c0cca06fc21c5c5ed63bf168e6c9',
+  'angle_revision': 'c81da1c809fed1f5f0f7ced07584f1dca4d3f7dc',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.