Resume using browser_tests WindowServer killer filter on mac.

Bug: 828031
Change-Id: Iaef9c4172d0182c05cc2ae8b677d60a9d6290df5
Reviewed-on: https://chromium-review.googlesource.com/c/1274453
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: John Budorick <jbudorick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#598556}
2 files changed