Adds accessibility role for figure tag and handles its children as a group.

Adds accessibility role for figure tag and handles its children as a group.
figure tag can have several children.
This patch makes its children a group for accessibility role.

BUG=282040
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=181203

[je_julie(Not used), 2014-08-28 08:25:41]

je_julie.kim@samsung.com changed reviewers:
+ dmazzoni@chromium.org

[je_julie(Not used), 2014-08-29 10:32:43]

dmazzoni, PTAL.

[dmazzoni, 2014-08-29 11:06:54]

Please add this to AXNodeObject::determineAccessibilityRole too - though
unfinished, that variant is used in a few rare cases where there's a node but no
renderer - currently (1) in a canvas element, or (2) when a dom node is
visibility:hidden or display:none but aria-hidden: false.

[je_julie(Not used), 2014-08-29 13:31:21]

On 2014/08/29 11:06:54, dmazzoni wrote:
> Please add this to AXNodeObject::determineAccessibilityRole too - though
> unfinished, that variant is used in a few rare cases where there's a node but
no
> renderer - currently (1) in a canvas element, or (2) when a dom node is
> visibility:hidden or display:none but aria-hidden: false.

dmazzoni,
Thank you for review.
I updated patch with adding role to AXNodeObject for the case without renderer.
PTAL.

[dmazzoni, 2014-09-01 06:49:24]

dmazzoni@chromium.org changed reviewers:
+ dglazkov@chromium.org

[dmazzoni, 2014-09-01 06:49:24]

lgtm

+dglazkov for public/web

[dmazzoni, 2014-09-01 21:08:44]

dmazzoni@chromium.org changed reviewers:
- dglazkov@chromium.org

[dmazzoni, 2014-09-01 21:08:44]

Oops, just realized no extra lgtm needed for this change. I'll press the commit
queue button now.

[dmazzoni, 2014-09-01 21:08:49]

The CQ bit was checked by dmazzoni@chromium.org

[commit-bot: I haz the power, 2014-09-01 21:09:23]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/je_julie.kim@samsung.com/515843002/20001

[commit-bot: I haz the power, 2014-09-01 22:16:30]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  linux_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/2...)

[commit-bot: I haz the power, 2014-09-01 22:42:44]

Committed patchset #2 (id:20001) as 181203