Roll ANGLE from 8138cbbd875a to dcc562158c8e (3 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/8138cbbd875a..dcc562158c8e

2020-07-30 syoussefi@chromium.org Vulkan: Implement GL_EXT_multisampled_render_to_texture
2020-07-30 penghuang@chromium.org Support EGL_ANGLE_display_semaphore_share_group for DisplayNULL
2020-07-30 syoussefi@chromium.org Vulkan: Remove unnecessary endRenderPass calls.

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 tobine@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: tobine@google.com
Change-Id: I56e11f757f9dc5ffac7a0cb9da41df3a3cdf0fd3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2330032Reviewed-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@{#793269}

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': '8138cbbd875a6aa9b7daa4a4e6d2b83aecf9b310',
+  'angle_revision': 'dcc562158c8eecbfa5326e1cc7b28e9f4968a82f',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.