Roll src/third_party/angle 88a99e4382c1..b2885bc4a40f (2 commits)

https://chromium.googlesource.com/angle/angle.git/+log/88a99e4382c1..b2885bc4a40f

git log 88a99e4382c1..b2885bc4a40f --date=short --no-merges --format='%ad %ae %s'
2019-10-23 tobine@google.com Vulkan:Enable UpdateBufferInUse test on AMD
2019-10-23 xinyi.he@arm.com Vulkan: Mipmap is unconditionally enabled in ANGLE

Created with:
  gclient setdep -r src/third_party/angle@b2885bc4a40f

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 jonahr@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/+/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_optional_gpu_tests_rel
TBR=jonahr@google.com

Bug: None
Change-Id: I3b36d0ffca4cd0b0f61614e5ad576cdff1a4a41c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1877607Reviewed-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@{#708863}

DEPS

@@ -183,7 +183,7 @@ 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': '88a99e4382c1c7413d6b7324a06cdc045adb23c6',
+  'angle_revision': 'b2885bc4a40fd5539980f0845f8ee9c6fa6098b4',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.