Adds support for WAI-ARIA role option, by adding exposure of MSAA role ROLE_S...

webkit/glue/glue_accessibility_object.cc

 // Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 
 #include "AccessibilityObject.h"
 #include "EventHandler.h"
 #include "FrameView.h"
 #include "PlatformKeyboardEvent.h"
@@ skipping 373 matching lines @@
     case WebCore::RadioGroupRole:
     case WebCore::GroupRole:
       return WebAccessibility::ROLE_GROUPING;
     case WebCore::LinkRole:
     case WebCore::WebCoreLinkRole:
       return WebAccessibility::ROLE_LINK;
     case WebCore::ListRole:
       return WebAccessibility::ROLE_LIST;
     case WebCore::ListBoxRole:
       return WebAccessibility::ROLE_LISTBOX;
+    case WebCore::ListBoxOptionRole:
+      return WebAccessibility::ROLE_LISTITEM;
     case WebCore::MenuBarRole:
       return WebAccessibility::ROLE_MENUBAR;
     case WebCore::MenuButtonRole:
     case WebCore::MenuItemRole:
       return WebAccessibility::ROLE_MENUITEM;
     case WebCore::MenuRole:
       return WebAccessibility::ROLE_MENUPOPUP;
     case WebCore::OutlineRole:
       return WebAccessibility::ROLE_OUTLINE;
     case WebCore::TabGroupRole:
@@ skipping 66 matching lines @@
   if (!obj)
     return NULL;
 
   GlueAccessibilityObject* result =
       static_cast<GlueAccessibilityObject*>(obj->wrapper());
   if (!result)
     result = CreateInstance(obj);
 
   return result;
 }