Web Inspector: AXI: support for live regions

Web Inspector: AXI: support for live regions
https://bugs.webkit.org/show_bug.cgi?id=130725

Patch by James Craig <jcraig@apple.com> on 2014-03-28
Reviewed by Timothy Hatcher.

Source/WebCore:

Tests: inspector-protocol/dom/getAccessibilityPropertiesForNode.html
       inspector-protocol/dom/getAccessibilityPropertiesForNode_liveRegion.html

Initial support for @aria-live, @aria-atomic, and @aria-busy.

* inspector/InspectorDOMAgent.cpp:
(WebCore::InspectorDOMAgent::buildObjectForAccessibilityProperties):
* inspector/protocol/DOM.json:

Source/WebInspectorUI:

Initial support for @aria-live, @aria-atomic, and @aria-busy.

* Localizations/en.lproj/localizedStrings.js:
* UserInterface/Models/DOMNode.js:
* UserInterface/Views/DOMNodeDetailsSidebarPanel.js:
* UserInterface/Views/Main.css:

Websites/webkit.org:

Demo update to show off the new Inspector support for live regions.

* blog-files/aria1.0/combobox_with_live_region_status.html:

LayoutTests:

Initial support for @aria-live, @aria-atomic, and @aria-busy.

* inspector-protocol/dom/getAccessibilityPropertiesForNode-expected.txt: Updated.
* inspector-protocol/dom/getAccessibilityPropertiesForNode.html: Updated.
* inspector-protocol/dom/getAccessibilityPropertiesForNode_liveRegion-expected.txt: Added.
* inspector-protocol/dom/getAccessibilityPropertiesForNode_liveRegion.html: Added.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@166449 268f45cc-cd09-0410-ab3c-d52691b4dbfc