Roll ANGLE from 65dcbe124508 to 1bd71b48fb5c (3 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/65dcbe124508..1bd71b48fb5c

2020-09-10 syoussefi@chromium.org Make gl::DrawBufferMask a BitSet8
2020-09-10 emaxx@chromium.org Fix useless move() in SizedMRUCache_unittest.cpp
2020-09-10 timvp@google.com Vulkan: Avoid linking to SPIR-V validation if possible

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: chromium:1122844
Tbr: ianelliott@google.com
Test: Test: CQ
Change-Id: I58d5f34c0bc0fb77b2b49fc6756eca63b5eb56d3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2404083Reviewed-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@{#805905}

DEPS

@@ -207,7 +207,7 @@ 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': '65dcbe124508f9799348fd4828cbb0f76cf80671',
+  'angle_revision': '1bd71b48fb5cd5bf393f730d3f542e493a1e324f',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.