Roll ANGLE from 46107d3ece07 to 8930f18245df (3 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/46107d3ece07..8930f18245df

2020-11-20 cclao@google.com Vulkan: Add feature flag to fallback rotation to use driver uniform
2020-11-19 angle-autoroll@skia-public.iam.gserviceaccount.com Roll VK-GL-CTS from 4fe17f3425ee to 3f73b676d6e8 (9 revisions)
2020-11-19 geofflang@google.com roll_aosp: Pass more forceful args to gclient sync

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 cnorthrop@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: cnorthrop@google.com
Change-Id: I1878c98fd78e90c31c59b00ad71c1652894cfc9b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2551835Reviewed-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@{#829550}

DEPS

@@ -209,7 +209,7 @@ 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': '46107d3ece07f5cd1946b1013f69c110c0229a93',
+  'angle_revision': '8930f18245df678abc944376372c77ba5e2a658b',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.