Roll src/third_party/angle 8247ae787cc4..135f8fcba837 (5 commits)

https://chromium.googlesource.com/angle/angle.git/+log/8247ae787cc4..135f8fcba837

git log 8247ae787cc4..135f8fcba837 --date=short --first-parent --format='%ad %ae %s'
2020-01-23 syoussefi@chromium.org Vulkan: Remove inactive uniforms in the translator
2020-01-23 spang@chromium.org Vulkan: Fix setupDraw when VK_EXT_transform_feedback is not enabled
2020-01-22 courtneygo@google.com Vulkan: Fix cast of float to unsigned int for ARM
2020-01-22 syoussefi@chromium.org Vulkan: Line raster emulation through specialization constant
2020-01-22 sugoi@google.com Enable GL_NV_fence with Vulkan backend

Created with:
  gclient setdep -r src/third_party/angle@135f8fcba837

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
Bug: None
Tbr: timvp@google.com
Change-Id: If618f15c881ed1138fd8e3bfdd906c07f820a031
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2016079Reviewed-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@{#734352}

DEPS

@@ -193,7 +193,7 @@ 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': '8247ae787cc41cf203bffa90bd5ea44c02ba6a75',
+  'angle_revision': '135f8fcba837098a5ee0ed699d59445716908825',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.