Bring back browser_tests on Mac10.13 as non-experimental.

The bots appear to be stable with the test filter in place.

Bug: 828031
Change-Id: I50f12e581dbc1e3832687326f71505b92ee5d73d
Reviewed-on: https://chromium-review.googlesource.com/c/1299655
Reviewed-by: John Budorick <jbudorick@chromium.org>
Commit-Queue: Robert Sesek <rsesek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#602841}
2 files changed