ChromeOS: fix OOBE crash.

ChromeOS: fix OOBE crash.

This CL fixes crash when multiply JS requests to show Login screen are
generated.

BUG=645625
TEST=none

Committed: https://crrev.com/000c822ed96c0eae72ef74bcad077d324cef3331
Cr-Commit-Position: refs/heads/master@{#418677}

[Alexander Alekseev, 2016-09-14 20:31:23]

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

[Alexander Alekseev, 2016-09-14 20:31:24]

Please review.

[Alexander Alekseev, 2016-09-14 20:31:33]

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

[commit-bot: I haz the power, 2016-09-14 20:32:33]

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

[achuithb, 2016-09-14 20:36:52]

lgtm

[commit-bot: I haz the power, 2016-09-14 21:09:09]

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

[commit-bot: I haz the power, 2016-09-14 21:09:10]

Dry run: This issue passed the CQ dry run.

[Alexander Alekseev, 2016-09-14 21:18:08]

The CQ bit was checked by alemate@chromium.org

[commit-bot: I haz the power, 2016-09-14 21:19:30]

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, 2016-09-14 21:25:41]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-14 21:27:19]

Description was changed from

==========
ChromeOS: fix OOBE crash.


This CL fixes crash when multiply JS requests to show Login screen are
generated.

BUG=645625
TEST=none
==========

to

==========
ChromeOS: fix OOBE crash.

This CL fixes crash when multiply JS requests to show Login screen are
generated.

BUG=645625
TEST=none

Committed: https://crrev.com/000c822ed96c0eae72ef74bcad077d324cef3331
Cr-Commit-Position: refs/heads/master@{#418677}
==========

[commit-bot: I haz the power, 2016-09-14 21:27:19]

Patchset 1 (id:??) landed as
https://crrev.com/000c822ed96c0eae72ef74bcad077d324cef3331
Cr-Commit-Position: refs/heads/master@{#418677}