A11y for supervised users import

A11y for supervised users import:
Make it possible to tab-navigate to import page and ensure tab/arrows-navigation works there.

BUG=360588
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=266435

[Nikita (slow), 2014-04-23 10:17:16]

>> A11y for supervised users import

Please provide a bit more detailed description like
* Setting focus on [Next] button
and so on.

[Nikita (slow), 2014-04-23 10:26:16]

lgtm

[Denis Kuznetsov (DE-MUC), 2014-04-25 11:35:28]

The CQ bit was checked by antrim@chromium.org

[commit-bot: I haz the power, 2014-04-25 13:15:37]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/antrim@chromium.org/246603004/20001

[commit-bot: I haz the power, 2014-04-25 23:13:49]

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

[commit-bot: I haz the power, 2014-04-25 23:13:50]

Try jobs failed on following builders:
  tryserver.chromium on win_chromium_rel

[Denis Kuznetsov (DE-MUC), 2014-04-27 09:06:01]

The CQ bit was checked by antrim@chromium.org

[commit-bot: I haz the power, 2014-04-27 09:07:15]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/antrim@chromium.org/246603004/20001

[commit-bot: I haz the power, 2014-04-28 05:56:27]

Change committed as 266435