Roll src/third_party/openscreen/src 7ea440367483..851d4192af51 (1 commits)

https://chromium.googlesource.com/openscreen.git/+log/7ea440367483..851d4192af51

git log 7ea440367483..851d4192af51 --date=short --first-parent --format='%ad %ae %s'
2020-04-07 jophba@chromium.org Add legacy (Debian Jessie) sysroot

Created with:
  gclient setdep -r src/third_party/openscreen/src@851d4192af51

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/openscreen-chromium
Please CC jophba@chromium.org 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

Bug: None
Tbr: jophba@chromium.org
Change-Id: Ia1ba3eb9db20b3ef14a42bf022efcab90a468211
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2139605
Reviewed-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@{#757271}