Roll third_party/externals/angle2 85ca189542cd..85ca71c2167b (4 commits)

https://chromium.googlesource.com/angle/angle.git/+log/85ca189542cd..85ca71c2167b


git log 85ca189542cd..85ca71c2167b --date=short --no-merges --format='%ad %ae %s'
2019-01-18 cnorthrop@google.com Create a whitelist for use in Android platform
2019-01-18 jmadill@chromium.org Even more inlining and micro-optimization.
2019-01-18 jmadill@chromium.org Use a table for vertex attrib type validation.
2019-01-18 jiajia.qin@intel.com ES31: Add top_level_array_stride support


Created with:
  gclient setdep -r third_party/externals/angle2@85ca71c2167b

The AutoRoll server is located here: https://autoroll.skia.org/r/angle-skia-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

CQ_INCLUDE_TRYBOTS=skia.primary:Build-Debian9-Clang-x86_64-Release-ANGLE;skia.primary:Perf-Win10-Clang-AlphaR2-GPU-RadeonR9M470X-x86_64-Debug-All-ANGLE;skia.primary:Perf-Win10-Clang-NUC5i7RYH-GPU-IntelIris6100-x86_64-Debug-All-ANGLE;skia.primary:Perf-Win10-Clang-NUC6i5SYK-GPU-IntelIris540-x86_64-Debug-All-ANGLE;skia.primary:Perf-Win10-Clang-NUCD34010WYKH-GPU-IntelHD4400-x86_64-Debug-All-ANGLE;skia.primary:Perf-Win10-Clang-ShuttleC-GPU-GTX960-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-AlphaR2-GPU-RadeonR9M470X-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-NUC6i5SYK-GPU-IntelIris540-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-NUCD34010WYKH-GPU-IntelHD4400-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-ShuttleC-GPU-GTX960-x86_64-Debug-All-ANGLE
TBR=halcanary@google.com

Change-Id: I3af6d432d0e56d3eaacadfca049de01a31352ce1
Reviewed-on: https://skia-review.googlesource.com/c/185343
Reviewed-by: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>