Roll ANGLE from 6789018a71c1 to 7ff01bb15d40 (2 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/6789018a71c1..7ff01bb15d40

2020-05-25 j.vigil@samsung.com EGL: Add missing sync entry points
2020-05-25 jonahr@google.com GL: Entry points for GL_OES_texture_cube_map_array

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 ynovikov@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: ynovikov@google.com
Change-Id: I43c71b50f6693c398923aa9f771d76282ac6db92
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2212639Reviewed-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@{#771679}

DEPS

@@ -190,7 +190,7 @@ 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': '6789018a71c1cc70af8576c650a514c58d372d95',
+  'angle_revision': '7ff01bb15d4033e00813034f952cc18c91e27b73',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.