Roll src/third_party/angle 664376e20ab2..3a9098412b8c (2 commits)

https://chromium.googlesource.com/angle/angle.git/+log/664376e20ab2..3a9098412b8c

git log 664376e20ab2..3a9098412b8c --date=short --first-parent --format='%ad %ae %s'
2020-05-14 cnorthrop@google.com Perf: Add Reset call to trace tests
2020-05-14 cnorthrop@google.com Perf: Detect context used by trace

Created with:
  gclient setdep -r src/third_party/angle@3a9098412b8c

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 geofflang@chromium.org 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;luci.chromium.try:linux-swangle-try-x64;luci.chromium.try:win-swangle-try-x86
Bug: None
Tbr: geofflang@chromium.org
Change-Id: Ib2951ef463f3faeba50ea0dc14dd2476fa2c09e8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2200610Reviewed-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@{#768710}

DEPS

@@ -190,7 +190,7 @@ 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': '664376e20ab2e72b482a5790cbe5e4c9b9b6872f',
+  'angle_revision': '3a9098412b8cc9163d8b46c2861c59fce69d052b',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.