Roll ANGLE from b3545b42a10a to 99f48c74ab76 (3 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/b3545b42a10a..99f48c74ab76

2020-08-06 angle-autoroll@skia-public.iam.gserviceaccount.com Roll Vulkan-Loader from bfe4f378aee6 to ef36eedb0d09 (1 revision)
2020-08-06 angle-autoroll@skia-public.iam.gserviceaccount.com Roll SPIRV-Tools from 8bc27a1cfbc1 to 5fd92a7e0c84 (5 revisions)
2020-08-06 angle-autoroll@skia-public.iam.gserviceaccount.com Roll Vulkan-Tools from a4505d37ffe7 to a1c21580f50b (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 geofflang@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: geofflang@google.com
Change-Id: Ibd5d730810955fb1fd9307a904a1c1263f59238b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2341107Reviewed-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@{#795466}

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': 'b3545b42a10a5876f4933438ade208adb5859b3b',
+  'angle_revision': '99f48c74ab763fb6aeff172bd1eee79681c416dd',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.