Roll src/third_party/angle 5e7ef660be4a..2aa42d8b508b (4 commits)

https://chromium.googlesource.com/angle/angle.git/+log/5e7ef660be4a..2aa42d8b508b

git log 5e7ef660be4a..2aa42d8b508b --date=short --first-parent --format='%ad %ae %s'
2020-04-15 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/SwiftShader 711867566999..81e08df29531 (9 commits)
2020-04-15 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/vulkan-tools/src ae0f0ead3a56..1be434141625 (1 commits)
2020-04-15 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/spirv-tools/src e70d25f6fa5d..c018fc6ae667 (9 commits)
2020-04-15 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/vulkan-loader/src bb8be13e3ffe..3f7e3cbf33a7 (9 commits)

Created with:
  gclient setdep -r src/third_party/angle@2aa42d8b508b

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/+/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
Change-Id: I3975cf00941f7fe7f6401c257188a276a66555c7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2150423Reviewed-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@{#759252}

DEPS

@@ -187,7 +187,7 @@ 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': '5e7ef660be4a7bcbfd0499417ce68d5115f9606f',
+  'angle_revision': '2aa42d8b508ba43d402b656e367c07dcc2a00a6d',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.