Update the alignment of the chrome://apps theme attribution when theme is installed

Update the alignment of the chrome://apps theme attribution when theme is installed

This CL updates the alignment of the theme attribution on any open
chrome://apps pages when the user installs a new theme.

BUG=523497
TEST=Manual, see bug

Committed: https://crrev.com/b1a17c24b420b95b78558fe36701e0dc1fd6e214
Cr-Commit-Position: refs/heads/master@{#347813}

[pkotwicz, 2015-09-08 17:42:48]

Patchset #1 (id:1) has been deleted

[pkotwicz, 2015-09-08 17:47:52]

pkotwicz@chromium.org changed reviewers:
+ dbeam@chromium.org

[pkotwicz, 2015-09-08 17:47:53]

dbeam@ can you please take a look?

[Dan Beam, 2015-09-08 21:16:34]

lgtm

[pkotwicz, 2015-09-08 21:40:07]

The CQ bit was checked by pkotwicz@chromium.org

[commit-bot: I haz the power, 2015-09-08 21:40:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1312163007/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1312163007/20001

[commit-bot: I haz the power, 2015-09-08 22:32:55]

Committed patchset #1 (id:20001)

[commit-bot: I haz the power, 2015-09-08 22:33:47]

Patchset 1 (id:??) landed as
https://crrev.com/b1a17c24b420b95b78558fe36701e0dc1fd6e214
Cr-Commit-Position: refs/heads/master@{#347813}