Roll src/third_party/angle 13e4cdb26a25..2d5da0298b9b (4 commits)

https://chromium.googlesource.com/angle/angle.git/+log/13e4cdb26a25..2d5da0298b9b

git log 13e4cdb26a25..2d5da0298b9b --date=short --first-parent --format='%ad %ae %s'
2020-04-17 jmadill@chromium.org Minor angle_end2end_tests cleanups.
2020-04-17 lehoangq@gmail.com Separate GLES1's state enum switch code from GLES2+
2020-04-17 cclao@google.com Vulkan: store ImageLayout in PackedAttachmentOpsDesc
2020-04-17 geofflang@google.com Remove more bad files before rolling into AOSP.

Created with:
  gclient setdep -r src/third_party/angle@2d5da0298b9b

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: I5af8473c3572faa10054cc514f97c382e7a3e3f0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2154904Reviewed-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@{#760270}

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': '13e4cdb26a25484477e690ccdc13e3e2a8349d26',
+  'angle_revision': '2d5da0298b9b97f36cc9bc6bd2a0dc3fc835049d',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.