Roll src/third_party/angle ca1b0fb895ca..fb40d231c3e2 (5 commits)

https://chromium.googlesource.com/angle/angle.git/+log/ca1b0fb895ca..fb40d231c3e2

git log ca1b0fb895ca..fb40d231c3e2 --date=short --first-parent --format='%ad %ae %s'
2019-12-02 jmadill@chromium.org Add new test runner harness.
2019-12-02 syoussefi@chromium.org Vulkan: implement external semaphore barriers
2019-12-02 syoussefi@chromium.org Fix RenderingLimitToDefaultFBOSizeWithNoAttachments test
2019-12-02 syoussefi@chromium.org Add test for multithreaded shared-context resource
2019-12-02 geofflang@chromium.org D3D: Log why a renderer fails to initialize.

Created with:
  gclient setdep -r src/third_party/angle@fb40d231c3e2

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 geofflang@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_optional_gpu_tests_rel
Bug: chromium:1026673,chromium:1029091
Tbr: geofflang@google.com
Change-Id: Ie7249b58c3681e8f2a2238cfc86689216142593c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1947424Reviewed-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@{#720769}

DEPS

@@ -184,7 +184,7 @@ 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': 'ca1b0fb895ca86ce6300cf365dce7b10c395c559',
+  'angle_revision': 'fb40d231c3e2ee7c38f8445ef5defc0ab0f5f15d',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.