Set "Hover" status during focus for accessibility.

Set "Hover" status during focus for accessibility.

Based on the discussion on crbug.com/120499, we'd better to set the "hover"
status to the launcher items when focused.  This CL keeps the dotted rectangle too.

R=zork@chromium.org,davemoore@chromium.org
BUG=120499
TEST=manually verified


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=141166

[DaveMoore, 2012-05-31 00:07:30]

I believe that if you focus and blur while the mouse is still over the button
you will lose the hover state.

[Jun Mukai, 2012-05-31 02:10:19]

Oh I see.  Then Added a new "STATE_FOCUSED".

[Zachary Kuznia, 2012-05-31 08:12:07]

lgtm

[Jun Mukai, 2012-05-31 20:23:18]

Dave, could you make progress of the code review on this CL?  It fixes according
to your comment and still simple enough.

[Jun Mukai, 2012-06-06 15:26:44]

ping?

[DaveMoore, 2012-06-07 16:31:16]

lgtm

[commit-bot: I haz the power, 2012-06-08 01:08:39]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/mukai@chromium.org/10449077/1003

[commit-bot: I haz the power, 2012-06-08 01:08:41]

Failed to apply patch for ash/launcher/launcher_button.h:
While running patch -p1 --forward --force;
patching file ash/launcher/launcher_button.h
Hunk #1 FAILED at 24.
Hunk #2 succeeded at 91 (offset 12 lines).
1 out of 2 hunks FAILED -- saving rejects to file
ash/launcher/launcher_button.h.rej

[commit-bot: I haz the power, 2012-06-08 01:28:49]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/mukai@chromium.org/10449077/8003

[commit-bot: I haz the power, 2012-06-08 03:46:49]

Change committed as 141166