arc: Fix crash on close a notification

arc: Fix crash on close a notification

Speculative fix of the notification close crash that the underlying
notification surface is changed after the floating close button
is created.

BUG=646634
Committed: https://crrev.com/6232937b395e494747b457b3f046c3bb86c65c9c
Cr-Commit-Position: refs/heads/master@{#418881}

[xiyuan, 2016-09-14 20:41:08]

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

[commit-bot: I haz the power, 2016-09-14 20:41:45]

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

[xiyuan, 2016-09-14 20:42:39]

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

[xiyuan, 2016-09-14 20:43:14]

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

[commit-bot: I haz the power, 2016-09-14 20:43:31]

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, 2016-09-14 21:20:58]

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

[commit-bot: I haz the power, 2016-09-14 21:20:59]

Dry run: This issue passed the CQ dry run.

[xiyuan, 2016-09-15 00:16:01]

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

[commit-bot: I haz the power, 2016-09-15 00:16:44]

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, 2016-09-15 00:57:41]

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

[commit-bot: I haz the power, 2016-09-15 00:57:42]

Dry run: This issue passed the CQ dry run.

[yoshiki, 2016-09-15 04:35:03]

lgtm

[xiyuan, 2016-09-15 16:09:41]

The CQ bit was checked by xiyuan@chromium.org

[commit-bot: I haz the power, 2016-09-15 16:10:06]

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, 2016-09-15 16:15:21]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-09-15 17:10:12]

Description was changed from

==========
arc: Fix crash on close a notification

Speculative fix of the notification close crash that the underlying
notification surface is changed after the floating close button
is created.

BUG=646634
==========

to

==========
arc: Fix crash on close a notification

Speculative fix of the notification close crash that the underlying
notification surface is changed after the floating close button
is created.

BUG=646634

Committed: https://crrev.com/6232937b395e494747b457b3f046c3bb86c65c9c
Cr-Commit-Position: refs/heads/master@{#418881}
==========

[commit-bot: I haz the power, 2016-09-15 17:10:13]

Patchset 3 (id:??) landed as
https://crrev.com/6232937b395e494747b457b3f046c3bb86c65c9c
Cr-Commit-Position: refs/heads/master@{#418881}