Add DumpAccessibilityTree tests (5 of 20).

Add DumpAccessibilityTree tests (5 of 20).

HTML Tags: head, input type tel, noscript
ARIA Role: listbox, separator
ARIA state/property: aria-required(true/false)

Following HTML tags are undergoing/done in some other CL:
HTML Tag - input type num, pre, header, blockquote.

HTML ruby tag is not exposed correctly. Will submit it with the fix in new CL.

BUG=170577
Committed: https://crrev.com/82dd02e88cff23dbfb40145e3099ade299e0da93
Cr-Commit-Position: refs/heads/master@{#301115}

[shreeramk, 2014-10-24 11:44:43]

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

[shreeramk, 2014-10-24 11:44:45]

Please review.

Thanks!

[dmazzoni, 2014-10-24 15:13:55]

The CQ bit was checked by dmazzoni@chromium.org

[dmazzoni, 2014-10-24 15:13:56]

lgtm

[commit-bot: I haz the power, 2014-10-24 15:15:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/680483002/20001

[commit-bot: I haz the power, 2014-10-24 16:10:17]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2014-10-24 16:10:59]

Patchset 2 (id:??) landed as
https://crrev.com/82dd02e88cff23dbfb40145e3099ade299e0da93
Cr-Commit-Position: refs/heads/master@{#301115}