Fix the hover/focus CSS for the buttons in the desktop User Manager.

Fix the hover/focus CSS for the buttons in the desktop User Manager.

BUG=392147
TEST=Start Chrome with --new-profile-manager, and click on "Not <name>"
from the avatar bubble. In the User Mnaager, press tab until you get
to the Guest/Add user buttons. They should be underlined, and pressing
Enter should perform the correct action

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=281839

[Nikita (slow), 2014-07-08 15:44:51]

lgtm

[noms (inactive), 2014-07-08 15:45:18]

Thanks!
On 2014/07/08 15:44:51, Nikita Kostylev wrote:
> lgtm

[noms (inactive), 2014-07-08 15:45:20]

The CQ bit was checked by noms@chromium.org

[commit-bot: I haz the power, 2014-07-08 15:46:09]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/noms@chromium.org/373163002/1

[commit-bot: I haz the power, 2014-07-08 19:46:10]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  win_chromium_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/win_chromium_rel/buil...)

[commit-bot: I haz the power, 2014-07-08 21:53:22]

Change committed as 281839