Roll src/third_party/angle 27a813089d83..9459bae14b65 (5 commits)

https://chromium.googlesource.com/angle/angle.git/+log/27a813089d83..9459bae14b65

git log 27a813089d83..9459bae14b65 --date=short --first-parent --format='%ad %ae %s'
2020-03-04 cnorthrop@google.com Capture/Replay: Add Vertex Array Object support to mid-execution capture
2020-03-04 cnorthrop@google.com Capture/Replay: Add TransformFeedback Object support to mid-execution capture
2020-03-04 lexa.knyazev@gmail.com D3D11: Implement OES_draw_buffers_indexed
2020-03-04 ianelliott@google.com Vulkan: Disable forceOldRewriteStructSamplers for SwS-Android
2020-03-04 jmadill@chromium.org Fix up EGLSurfaceTest.

Created with:
  gclient setdep -r src/third_party/angle@9459bae14b65

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 ianelliott@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: ianelliott@google.com
Change-Id: Ibca6a5351b07ce11bc92c0fa140cbbb78fbdccee
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2088266Reviewed-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@{#746980}

DEPS

@@ -187,7 +187,7 @@ 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': '27a813089d835c1ad706237c7adf70f5e0e1f59f',
+  'angle_revision': '9459bae14b650fb951bb2dfbae3df39a4e3a171b',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.