Roll src/third_party/angle 24627fa40a48..2439a3af02eb (4 commits)

https://chromium.googlesource.com/angle/angle.git/+log/24627fa40a48..2439a3af02eb

git log 24627fa40a48..2439a3af02eb --date=short --first-parent --format='%ad %ae %s'
2020-01-23 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/SwiftShader b766e5e7fbf4..c514ab001bb0 (8 commits)
2020-01-23 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/vulkan-tools/src ca9b61a4455f..aaba1e4e6aec (1 commits)
2020-01-23 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/vulkan-validation-layers/src ac02c61ffc63..8317b28e672a (6 commits)
2020-01-23 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/vulkan-loader/src af8c7e040f93..37d3a235af2c (2 commits)

Created with:
  gclient setdep -r src/third_party/angle@2439a3af02eb

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: I3833067a4900eae31fab1261f855ef6bdec38381
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2016472Reviewed-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@{#734413}

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': '24627fa40a48a35771e20f34de77971867f7c21c',
+  'angle_revision': '2439a3af02eb9cce6c59781a0ed90b6ade99e7c4',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.