Implementing ATK state mapping for Chrome UI.

Implementing ATK state mapping for Chrome UI.

This CL includes implementation of ATK state mapping for chrome UI.
Also, some roles has been added in this CL.

BUG=463671
Committed: https://crrev.com/bf7014cb8f24b69f601206e114edccbdda2f2f5f
Cr-Commit-Position: refs/heads/master@{#321734}

[shreeramk, 2015-03-20 15:24:28]

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

[shreeramk, 2015-03-20 15:24:29]

PTAL. Thanks!

[dmazzoni, 2015-03-20 15:32:23]

lgtm

https://codereview.chromium.org/1021933003/diff/1/ui/accessibility/platform/a...
File ui/accessibility/platform/ax_platform_node_auralinux.cc (right):

https://codereview.chromium.org/1021933003/diff/1/ui/accessibility/platform/a...
ui/accessibility/platform/ax_platform_node_auralinux.cc:128: static AtkStateSet*
ax_platform_node_auralinux_ref_state_set(AtkObject*
nit: wrap this differently so the type and parameter name are on the same line:

static AtkStateSet* ax_platform_node_auralinux_ref_state_set(
    AtkObject* atk_object) {

[shreeramk, 2015-03-23 03:30:38]

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

[shreeramk, 2015-03-23 03:30:39]

The patchset sent to the CQ was uploaded after l-g-t-m from
dmazzoni@chromium.org
Link to the patchset: https://codereview.chromium.org/1021933003/#ps20001
(title: "Fixing nit")

[commit-bot: I haz the power, 2015-03-23 03:30:44]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1021933003/20001

[commit-bot: I haz the power, 2015-03-23 04:30:13]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-03-23 04:30:36]

Patchset 2 (id:??) landed as
https://crrev.com/bf7014cb8f24b69f601206e114edccbdda2f2f5f
Cr-Commit-Position: refs/heads/master@{#321734}