[New Tab Page] Add aria-hidden to an element.

[New Tab Page] Add aria-hidden to an element.

Skips it during accessibility treatment.

BUG=326793
Committed: https://crrev.com/c54cd222ccc48e66fcbc2db2b468afc7ee0d5c6b
Cr-Commit-Position: refs/heads/master@{#294659}

[Mathieu, 2014-09-12 15:22:30]

mathp@chromium.org changed reviewers:
+ huangs@chromium.org

[Mathieu, 2014-09-12 15:22:49]

Hi Sam, 

Forgot during previous CR

[huangs, 2014-09-12 18:53:07]

lgtm

[Mathieu, 2014-09-12 18:56:21]

The CQ bit was checked by mathp@chromium.org

[commit-bot: I haz the power, 2014-09-12 19:38:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patchset/569613003/1

[commit-bot: I haz the power, 2014-09-12 21:22:27]

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

[commit-bot: I haz the power, 2014-09-12 21:22:29]

Failed to commit the patch.

[commit-bot: I haz the power, 2014-09-12 21:25:58]

Patchset 1 (id:??) landed as
https://crrev.com/c54cd222ccc48e66fcbc2db2b468afc7ee0d5c6b
Cr-Commit-Position: refs/heads/master@{#294659}