ash: Fix flaky TrayIME* tests.

ash: Fix flaky TrayIME* tests.

It is necessary to restore the keyboard/touchscreen devices at the end
of the tests, so that subsequent tests are not affected.

BUG=545533
Committed: https://crrev.com/f26aa45a91493bb65a452ac671b66ed6d6aefe32
Cr-Commit-Position: refs/heads/master@{#405253}

[sadrul, 2016-07-13 18:30:08]

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

[sadrul, 2016-07-13 18:30:49]

sadrul@chromium.org changed reviewers:
+ jamescook@chromium.org, rsadam@chromium.org

[sadrul, 2016-07-13 18:30:49]

rsadam@ as the test author

jamescook@ as the owner.

[commit-bot: I haz the power, 2016-07-13 18:31:17]

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

[rsadam, 2016-07-13 18:33:06]

lgtm

[James Cook, 2016-07-13 19:16:48]

LGTM. Thanks for fixing this! Now my local test runs will go a little faster.

[commit-bot: I haz the power, 2016-07-13 19:20:40]

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

[commit-bot: I haz the power, 2016-07-13 19:20:41]

Dry run: This issue passed the CQ dry run.

[sadrul, 2016-07-13 19:29:54]

The CQ bit was checked by sadrul@chromium.org

[commit-bot: I haz the power, 2016-07-13 19:34:16]

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, 2016-07-13 20:07:48]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-13 20:08:27]

CQ bit was unchecked.

[commit-bot: I haz the power, 2016-07-13 20:10:01]

Description was changed from

==========
ash: Fix flaky TrayIME* tests.

It is necessary to restore the keyboard/touchscreen devices at the end
of the tests, so that subsequent tests are not affected.

BUG=545533
==========

to

==========
ash: Fix flaky TrayIME* tests.

It is necessary to restore the keyboard/touchscreen devices at the end
of the tests, so that subsequent tests are not affected.

BUG=545533

Committed: https://crrev.com/f26aa45a91493bb65a452ac671b66ed6d6aefe32
Cr-Commit-Position: refs/heads/master@{#405253}
==========

[commit-bot: I haz the power, 2016-07-13 20:10:02]

Patchset 1 (id:??) landed as
https://crrev.com/f26aa45a91493bb65a452ac671b66ed6d6aefe32
Cr-Commit-Position: refs/heads/master@{#405253}