Clean up ash::ShellTestApi

Clean up ash::ShellTestApi

Don't use the test API to access things that can be directly accessed from
WmShell.

BUG=none
TEST=ash_unittests

Committed: https://crrev.com/956f85452786effa48d8ed5f025a0e148661cc8e
Cr-Commit-Position: refs/heads/master@{#407563}

[James Cook, 2016-07-25 18:32:33]

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

[James Cook, 2016-07-25 18:32:50]

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

[James Cook, 2016-07-25 18:32:50]

sky, please take a look.

[commit-bot: I haz the power, 2016-07-25 18:33:05]

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, 2016-07-25 19:19:15]

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

[commit-bot: I haz the power, 2016-07-25 19:19:16]

Dry run: This issue passed the CQ dry run.

[sky, 2016-07-25 20:14:54]

LGTM

[James Cook, 2016-07-25 20:20:21]

The CQ bit was checked by jamescook@chromium.org

[commit-bot: I haz the power, 2016-07-25 20:20:52]

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, 2016-07-25 20:25:17]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-25 20:28:02]

Description was changed from

==========
Clean up ash::ShellTestApi

Don't use the test API to access things that can be directly accessed from
WmShell.

BUG=none
TEST=ash_unittests
==========

to

==========
Clean up ash::ShellTestApi

Don't use the test API to access things that can be directly accessed from
WmShell.

BUG=none
TEST=ash_unittests

Committed: https://crrev.com/956f85452786effa48d8ed5f025a0e148661cc8e
Cr-Commit-Position: refs/heads/master@{#407563}
==========

[commit-bot: I haz the power, 2016-07-25 20:28:03]

Patchset 1 (id:??) landed as
https://crrev.com/956f85452786effa48d8ed5f025a0e148661cc8e
Cr-Commit-Position: refs/heads/master@{#407563}