Grit: Make unit tests run on the trybots

Prevent tests from getting into a failed state on various OSes, by
running the tests on the bots instead of only as a presubmit.

Tests take a few seconds locally on Linux and Windows.

Bug: 961359
Change-Id: I71fabf230d611de5cd06380832085558521de83d
Reviewed-by: Dirk Pranke <>
Reviewed-by: Lei Zhang <>
Reviewed-by: Marc-Antoine Ruel <>
Commit-Queue: Rebekah Potter <>
Cr-Commit-Position: refs/heads/master@{#662917}
10 files changed