Roll third_party/externals/angle2 3c6b2e1613c8..57ad1e1287dd (8 commits)

https://chromium.googlesource.com/angle/angle.git/+log/3c6b2e1613c8..57ad1e1287dd

git log 3c6b2e1613c8..57ad1e1287dd --date=short --no-merges --format='%ad %ae %s'
2019-08-27 syoussefi@chromium.org Vulkan: Introduce ContextScoped
2019-08-26 shrekshao@google.com Implement Draw base vertex and base instance functions
2019-08-26 thakis@chromium.org Try to list files instead of directory in isolate for gl_cts data.
2019-08-26 lujc@google.com Use FenceNVID in place of GLuint handles
2019-08-26 jmadill@chromium.org Fix trace logging in Debug.
2019-08-26 ianelliott@google.com Vulkan: Enable ES1_VULKAN testing in end2end tests.
2019-08-26 cwallez@chromium.org LoggingAnnotator: don't output to trace file if there is no platform
2019-08-26 angle-autoroll@skia-public.iam.gserviceaccount.com Roll ./third_party/spirv-tools/src aef8f92b2bb6..1eb89172a82b (3 commits)

Created with:
  gclient setdep -r third_party/externals/angle2@57ad1e1287dd

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/angle-skia-autoroll
Please CC stani@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=skia.primary:Build-Debian9-Clang-x86_64-Release-ANGLE;skia.primary:Test-Win10-Clang-AlphaR2-GPU-RadeonR9M470X-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-Golo-GPU-QuadroP400-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-NUC5i7RYH-GPU-IntelIris6100-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-NUC6i5SYK-GPU-IntelIris540-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-NUC8i5BEK-GPU-IntelIris655-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-NUCD34010WYKH-GPU-IntelHD4400-x86_64-Debug-All-ANGLE
Bug: None
TBR=stani@google.com
Change-Id: I0db13b4a1672283d42e76abcf8cfbd7123efd33a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/237339
Reviewed-by: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
1 file changed