Fix crash in WizardController for Active Directory devices

Fix crash in WizardController for Active Directory devices

BUG=656992
TEST=manual

Committed: https://crrev.com/42839ee8c1195b25fbe327057e10c54f592b6693
Cr-Commit-Position: refs/heads/master@{#434626}

[Roman Sorokin (ftl), 2016-11-25 15:01:52]

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

[commit-bot: I haz the power, 2016-11-25 15:02:10]

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

[Roman Sorokin (ftl), 2016-11-25 15:02:25]

rsorokin@chromium.org changed reviewers:
+ achuith@chromium.org

[Roman Sorokin (ftl), 2016-11-25 15:02:26]

Achuith, PTAL

[commit-bot: I haz the power, 2016-11-25 15:32:42]

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

[commit-bot: I haz the power, 2016-11-25 15:32:43]

Dry run: This issue passed the CQ dry run.

[achuithb, 2016-11-28 08:51:26]

lgtm

[Thiemo Nagel, 2016-11-28 09:36:50]

The CQ bit was checked by tnagel@chromium.org

[commit-bot: I haz the power, 2016-11-28 09:37:11]

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

[Thiemo Nagel, 2016-11-28 09:46:55]

On 2016/11/28 09:37:11, commit-bot: I haz the power wrote:
> CQ is trying da patch. Follow status at

(Roman is on vacation.)

[commit-bot: I haz the power, 2016-11-28 10:04:58]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1480325810156260, "parent_rev":
"cc2a7db27fdba311e836e33caddda9ef80a22c3d", "commit_rev":
"1b9ab9ce536813fbbe730eacfa201be70c02a9f0"}

[commit-bot: I haz the power, 2016-11-28 10:05:22]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-28 10:07:56]

Description was changed from

==========
Fix crash in WizardController for Active Directory devices

BUG=656992
TEST=manual
==========

to

==========
Fix crash in WizardController for Active Directory devices

BUG=656992
TEST=manual

Committed: https://crrev.com/42839ee8c1195b25fbe327057e10c54f592b6693
Cr-Commit-Position: refs/heads/master@{#434626}
==========

[commit-bot: I haz the power, 2016-11-28 10:07:57]

Patchset 1 (id:??) landed as
https://crrev.com/42839ee8c1195b25fbe327057e10c54f592b6693
Cr-Commit-Position: refs/heads/master@{#434626}