AXRequired should be exposed only when aria-required="true" or required attribute is present

AXRequired should be exposed only when aria-required="true" or required attribute is present.

BUG=none

Committed: https://crrev.com/ef8183177b9be23c032c414d13f3bbb2a8bf3463
Cr-Commit-Position: refs/heads/master@{#307175}

[shreeramk, 2014-12-05 10:10:38]

shreeram.k@samsung.com changed reviewers:
+ dmazzoni@chromium.org

[shreeramk, 2014-12-05 10:10:38]

Please review.

Thanks!!

[dmazzoni, 2014-12-06 07:58:07]

lgtm

https://codereview.chromium.org/742783008/diff/1/content/browser/accessibilit...
File content/browser/accessibility/browser_accessibility_cocoa.mm (right):

https://codereview.chromium.org/742783008/diff/1/content/browser/accessibilit...
content/browser/accessibility/browser_accessibility_cocoa.mm:1353: if
(GetState(browserAccessibility_, ui::AX_STATE_REQUIRED))
nit: need { } around the body of the conditional because it's more than one
line.

[shreeramk, 2014-12-06 12:35:19]

The CQ bit was checked by shreeram.k@samsung.com

[commit-bot: I haz the power, 2014-12-06 12:35:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/742783008/20001

[commit-bot: I haz the power, 2014-12-06 13:15:24]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2014-12-06 13:16:01]

Patchset 2 (id:??) landed as
https://crrev.com/ef8183177b9be23c032c414d13f3bbb2a8bf3463
Cr-Commit-Position: refs/heads/master@{#307175}