Roll ANGLE from 679d118787e7 to 5635dbb91641 (3 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/679d118787e7..5635dbb91641

2021-01-18 penghuang@chromium.org Only call context::unMakeCurrent() if context is changed.
2021-01-18 geofflang@google.com Generate internal gl entry point functions as C functions.
2021-01-18 geofflang@google.com GL: Add detection of IMG and Vivante GPUs.

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 cnorthrop@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: chromium:983167
Tbr: cnorthrop@google.com
Change-Id: I59b6953733a027688b1a408769a41f83a8c04498
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2632780Reviewed-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@{#844645}

DEPS

@@ -211,7 +211,7 @@ 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': '679d118787e7dab0cfddc0d7339700539155990a',
+  'angle_revision': '5635dbb91641a72f1f713aa7c179e2432674f9c3',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.