Roll ANGLE from 8f5ca26678c1 to ff170c6f508d (10 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/8f5ca26678c1..ff170c6f508d

2021-01-16 timvp@google.com Tests: Add Real Gangster Crime trace
2021-01-16 timvp@google.com Revert "Vulkan: Generate gl_Position pre-rotation in SPIR-V"
2021-01-16 timvp@google.com Revert "Vulkan: Generate gl_Position.z correction in SPIR-V"
2021-01-16 timvp@google.com Revert "Vulkan: Move xfb position decl to translator in extension path"
2021-01-16 timvp@google.com Revert "Vulkan: Generate xfb support code in SPIR-V for extension path"
2021-01-16 timvp@google.com Revert "Cleanup translator option checks"
2021-01-16 syoussefi@chromium.org Cleanup translator option checks
2021-01-15 m.maiya@samsung.com Vulkan: Support EXT_clip_cull_distance extension
2021-01-15 syoussefi@chromium.org Vulkan: Translator pass to monomorphize problematic functions
2021-01-15 syoussefi@chromium.org Vulkan: Generate xfb support code in SPIR-V for extension path

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 timvp@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: timvp@google.com
Test: Test: angle_perftests --gtest_filter=TracePerfTest.Run/*real_gangster_crime*
Change-Id: Id66b57dc74e2dd05c7ebd1dd3e0b7572e70609ae
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2634265Reviewed-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@{#844350}

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': '8f5ca26678c12d54d2981a84e48a5304746ec824',
+  'angle_revision': 'ff170c6f508d45a48e573dcbf2a3001200dde61b',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.