Roll ANGLE from d8ca7d624751 to fa449cf3b0d0 (2 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/d8ca7d624751..fa449cf3b0d0

2021-01-08 jmadill@chromium.org Fix separable Geometry Shaders.
2021-01-08 jmadill@chromium.org Merge Program/ProgramPipeline::getMergedVaryings().

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: Iec8d1c8a2172b107ba5cea105456f12cdb089170
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2618199Reviewed-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@{#841616}

DEPS

@@ -211,7 +211,7 @@ 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': 'd8ca7d624751aeecb137704ae3542f8a289f35ef',
+  'angle_revision': 'fa449cf3b0d00e411a47039408fd31389d79beb0',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.