[Mac][Material Design] Fix regression with infobar border.

[Mac][Material Design] Fix regression with infobar border.

This cl fixes a regression where infobars no longer displayed their
border.

R=avi@chromium.org
BUG=615312
Committed: https://crrev.com/91226de4de99cf0d7b87b48ddabbb7affcb246e6
Cr-Commit-Position: refs/heads/master@{#397473}

[shrike, 2016-06-02 00:04:52]

PTAL

[Avi (use Gerrit), 2016-06-02 01:24:54]

lgtm

[shrike, 2016-06-02 17:03:42]

The CQ bit was checked by shrike@chromium.org

[commit-bot: I haz the power, 2016-06-02 17:04:16]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2029893002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2029893002/1

[commit-bot: I haz the power, 2016-06-02 18:21:25]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-02 18:23:46]

Description was changed from

==========
[Mac][Material Design] Fix regression with infobar border.

This cl fixes a regression where infobars no longer displayed their
border.

R=avi@chromium.org
BUG=615312
==========

to

==========
[Mac][Material Design] Fix regression with infobar border.

This cl fixes a regression where infobars no longer displayed their
border.

R=avi@chromium.org
BUG=615312

Committed: https://crrev.com/91226de4de99cf0d7b87b48ddabbb7affcb246e6
Cr-Commit-Position: refs/heads/master@{#397473}
==========

[commit-bot: I haz the power, 2016-06-02 18:23:46]

Patchset 1 (id:??) landed as
https://crrev.com/91226de4de99cf0d7b87b48ddabbb7affcb246e6
Cr-Commit-Position: refs/heads/master@{#397473}