cros: Fix crash after killing preloaded lock screen in task manager.

cros: Fix crash after killing preloaded lock screen in task manager.

Crash happens when showing the lock screen after killing a preloaded
one in the task manager.

BUG=669638
Review-Url: https://codereview.chromium.org/2659853005
Cr-Commit-Position: refs/heads/master@{#447043}
Committed: https://chromium.googlesource.com/chromium/src/+/b65749b36134548e2cc8463b10c63704dccbf396

[jdufault, 2017-01-27 23:29:46]

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

[commit-bot: I haz the power, 2017-01-27 23:30:26]

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, 2017-01-28 00:04:03]

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

[commit-bot: I haz the power, 2017-01-28 00:04:04]

Dry run: This issue passed the CQ dry run.

[jdufault, 2017-01-28 01:05:04]

Description was changed from

==========
cros: Fix crash after killing preloaded lock screen in task manager.

Crash happens when showing the lock screen after killing a preloaded
one in the task manager.

BUG=669638
==========

to

==========
cros: Fix crash after killing preloaded lock screen in task manager.

Crash happens when showing the lock screen after killing a preloaded
one in the task manager.

BUG=669638
==========

[jdufault, 2017-01-28 01:05:04]

jdufault@chromium.org changed reviewers:
+ xiyuan@chromium.org

[jdufault, 2017-01-28 01:05:28]

xiyuan@ PTAL. Thanks

[xiyuan, 2017-01-30 17:05:40]

lgtm

[jdufault, 2017-01-30 19:22:49]

The CQ bit was checked by jdufault@chromium.org

[commit-bot: I haz the power, 2017-01-30 19:23:20]

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, 2017-01-30 20:05:31]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1485804169505170, "parent_rev":
"53ab892579caabfe1758bbd203fed1495b5927c1", "commit_rev":
"b65749b36134548e2cc8463b10c63704dccbf396"}

[commit-bot: I haz the power, 2017-01-30 20:06:13]

Description was changed from

==========
cros: Fix crash after killing preloaded lock screen in task manager.

Crash happens when showing the lock screen after killing a preloaded
one in the task manager.

BUG=669638
==========

to

==========
cros: Fix crash after killing preloaded lock screen in task manager.

Crash happens when showing the lock screen after killing a preloaded
one in the task manager.

BUG=669638

Review-Url: https://codereview.chromium.org/2659853005
Cr-Commit-Position: refs/heads/master@{#447043}
Committed:
https://chromium.googlesource.com/chromium/src/+/b65749b36134548e2cc8463b10c6...
==========

[commit-bot: I haz the power, 2017-01-30 20:06:18]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/b65749b36134548e2cc8463b10c6...