Roll ANGLE from 52d2563373fa to 44bb4d7abee6 (8 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/52d2563373fa..44bb4d7abee6

2020-07-28 jmadill@chromium.org D3D11: Fix bug with static vertex attributes.
2020-07-28 nguyenmh@google.com Adds sampler serialization capability
2020-07-28 syoussefi@chromium.org Vulkan: Fix sub invalidate marking render targets undefined
2020-07-28 angle-autoroll@skia-public.iam.gserviceaccount.com Roll Vulkan-ValidationLayers from 361fb5311b9b to 171e04fac342 (8 revisions)
2020-07-28 angle-autoroll@skia-public.iam.gserviceaccount.com Roll SPIRV-Tools from 8b5ed4448dfe to 150be20d4334 (33 revisions)
2020-07-28 angle-autoroll@skia-public.iam.gserviceaccount.com Roll SwiftShader from 3b2cd31c7400 to 12c9d4ac61f2 (4 revisions)
2020-07-28 cclao@google.com Vulkan: Make staging buffer per context
2020-07-28 nguyenmh@google.com Serializes GL context states and reformats frame_capture_utils

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: chromium:1107433
Tbr: tobine@google.com
Change-Id: Ia736d2e43c9b1e899c60ef43009a33d17fdc9a1e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2323762Reviewed-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@{#792353}

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': '52d2563373fa1ac0df10eef05c29168bb062ba0b',
+  'angle_revision': '44bb4d7abee6a030afc6ad2e37ec63d6a4935203',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.