Roll ANGLE from e2e37e74709f to 6883db53569f (3 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/e2e37e74709f..6883db53569f

2020-10-19 angle-autoroll@skia-public.iam.gserviceaccount.com Roll SwiftShader from 52c1a859d9eb to df17a76102df (4 revisions)
2020-10-19 angle-autoroll@skia-public.iam.gserviceaccount.com Roll SPIRV-Tools from 5c64374dd6cb to 7e1825a59619 (7 revisions)
2020-10-19 angle-autoroll@skia-public.iam.gserviceaccount.com Roll Vulkan-Headers from 04306fa5d673 to 320af06cbdd2 (1 revision)

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 ynovikov@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: ynovikov@google.com
Change-Id: I9b03eb7e63d2159002476fbbc2ceb5b11feda53d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2484891Reviewed-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@{#818482}

DEPS

@@ -218,7 +218,7 @@ 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': 'e2e37e74709f3040494d0cbae16b0ccfe564881b',
+  'angle_revision': '6883db53569fd219b1591177370a01b4e12a46eb',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.