Fix regression: background artifact for origin glyphs of the '.security-property-unknown' persuasio…

Fix regression: background artifact for origin glyphs of the '.security-property-unknown' persuasion.

BUG=548973
Committed: https://crrev.com/d8379fad19308fbb17bc696ee176330be2c675db
Cr-Commit-Position: refs/heads/master@{#357020}

[mmccoy, 2015-10-29 16:27:49]

mmccoy@chromium.org changed reviewers:
+ dgozman@chromium.org, lgarron@chromium.org

[mmccoy, 2015-10-29 16:28:04]

Hi guys, 

PTAL?  Thanks!

-mm

[dgozman, 2015-10-29 17:23:34]

lgtm

[mmccoy, 2015-10-29 17:24:13]

The CQ bit was checked by mmccoy@chromium.org

[commit-bot: I haz the power, 2015-10-29 17:25:03]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1412093008/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1412093008/20001

[commit-bot: I haz the power, 2015-10-29 18:48:23]

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

[commit-bot: I haz the power, 2015-10-29 18:48:24]

Try jobs failed on following builders:
  mac_chromium_rel_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[lgarron, 2015-10-30 01:38:02]

The CQ bit was checked by lgarron@chromium.org

[commit-bot: I haz the power, 2015-10-30 01:38:36]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1412093008/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1412093008/20001

[commit-bot: I haz the power, 2015-10-30 02:11:49]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-10-30 02:12:59]

Patchset 2 (id:??) landed as
https://crrev.com/d8379fad19308fbb17bc696ee176330be2c675db
Cr-Commit-Position: refs/heads/master@{#357020}