Add mus_ws_unittests to Ozone CrOS trybot.

Add mus_ws_unittests to Ozone CrOS trybot.

It looks like this test was never running on any CrOS trybots, only
Windows and Linux.

BUG=672062
Committed: https://crrev.com/cf2516c642ad1906dd6d229b4753f72a6af389a7
Cr-Commit-Position: refs/heads/master@{#437260}

[kylechar, 2016-12-08 14:21:56]

The CQ bit was checked by kylechar@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-12-08 14:22:09]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-08 15:54:33]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-12-08 15:54:34]

Dry run: This issue passed the CQ dry run.

[kylechar, 2016-12-08 16:03:02]

kylechar@chromium.org changed reviewers:
+ sky@chromium.org

[sky, 2016-12-08 16:18:40]

LGTM

[kylechar, 2016-12-08 16:25:37]

The CQ bit was checked by kylechar@chromium.org

[commit-bot: I haz the power, 2016-12-08 16:25:54]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-08 16:29:52]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481214337160460, "parent_rev":
"c4e5658ee6706c92a157f633f91b5b7c5a1bab2e", "commit_rev":
"06d9657b1d741e52c83f9def2e3bd3c61c3d2038"}

[commit-bot: I haz the power, 2016-12-08 16:30:19]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-08 16:31:52]

Description was changed from

==========
Add mus_ws_unittests to Ozone CrOS trybot.

It looks like this test was never running on any CrOS trybots, only
Windows and Linux.

BUG=672062
==========

to

==========
Add mus_ws_unittests to Ozone CrOS trybot.

It looks like this test was never running on any CrOS trybots, only
Windows and Linux.

BUG=672062

Committed: https://crrev.com/cf2516c642ad1906dd6d229b4753f72a6af389a7
Cr-Commit-Position: refs/heads/master@{#437260}
==========

[commit-bot: I haz the power, 2016-12-08 16:31:52]

Patchset 1 (id:??) landed as
https://crrev.com/cf2516c642ad1906dd6d229b4753f72a6af389a7
Cr-Commit-Position: refs/heads/master@{#437260}