Refresh button for FrE and recovery modes added to enrollment screen.

Refresh button for FrE and recovery modes added to enrollment screen.

In addition fixed an issue where <- button was shown when it should not.

BUG=472671
TEST=manually,tested FrE and recovery modes, button works as expected.

Committed: https://crrev.com/f46f86c6c0b32fdc98b7c27ace907de67d735fe8
Cr-Commit-Position: refs/heads/master@{#329361}

[dzhioev (left Google), 2015-05-08 05:35:42]

dzhioev@chromium.org changed reviewers:
+ tnagel@chromium.org

[dzhioev (left Google), 2015-05-08 05:36:04]

Thiemo, please take a look.

[dzhioev (left Google), 2015-05-08 05:39:49]

On 2015/05/08 05:36:04, dzhioev wrote:
> Thiemo, please take a look.

NOTE: this CL is based on https://codereview.chromium.org/1133733003/ which is
not landed yet.

[dzhioev (left Google), 2015-05-12 00:06:46]

dzhioev@chromium.org changed reviewers:
+ nkostylev@chromium.org
- tnagel@chromium.org

[dzhioev (left Google), 2015-05-12 00:06:46]

https://codereview.chromium.org/1133733003/ is landed now.

Nikita, you have more expertise than Thiemo in this area, so please take a look.
Basicly, refresh button is shown instead of close button in cases when we can't
hide enrollment screen.

[Nikita (slow), 2015-05-12 05:43:07]

The CQ bit was checked by nkostylev@chromium.org

[Nikita (slow), 2015-05-12 05:43:07]

lgtm

[commit-bot: I haz the power, 2015-05-12 05:43:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1132043002/40001

[commit-bot: I haz the power, 2015-05-12 06:09:40]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-05-12 06:10:25]

Patchset 3 (id:??) landed as
https://crrev.com/f46f86c6c0b32fdc98b7c27ace907de67d735fe8
Cr-Commit-Position: refs/heads/master@{#329361}