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

chrome/browser/browser_accessibility.cc

 // Copyright (c) 2006-2008 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 "chrome/browser/browser_accessibility.h"
 
 #include "base/logging.h"
 #include "chrome/browser/browser_accessibility_manager.h"
 
 using webkit_glue::WebAccessibility;
@@ skipping 562 matching lines @@
       return ROLE_SYSTEM_DOCUMENT;
     case WebAccessibility::ROLE_GRAPHIC:
       return ROLE_SYSTEM_GRAPHIC;
     case WebAccessibility::ROLE_GROUPING:
       return ROLE_SYSTEM_GROUPING;
     case WebAccessibility::ROLE_LINK:
       return ROLE_SYSTEM_LINK;
     case WebAccessibility::ROLE_LIST:
     case WebAccessibility::ROLE_LISTBOX:
       return ROLE_SYSTEM_LIST;
+    case WebAccessibility::ROLE_LISTITEM:
+      return ROLE_SYSTEM_LISTITEM;
     case WebAccessibility::ROLE_MENUBAR:
       return ROLE_SYSTEM_MENUBAR;
     case WebAccessibility::ROLE_MENUITEM:
       return ROLE_SYSTEM_MENUITEM;
     case WebAccessibility::ROLE_MENUPOPUP:
       return ROLE_SYSTEM_MENUPOPUP;
     case WebAccessibility::ROLE_OUTLINE:
       return ROLE_SYSTEM_OUTLINE;
     case WebAccessibility::ROLE_PAGETABLIST:
       return ROLE_SYSTEM_PAGETABLIST;
@@ skipping 71 matching lines @@
     state |= STATE_SYSTEM_READONLY;
 
   if ((browser_accessibility_state >> WebAccessibility::STATE_TRAVERSED) & 1)
     state |= STATE_SYSTEM_TRAVERSED;
 
   if ((browser_accessibility_state >> WebAccessibility::STATE_UNAVAILABLE) & 1)
     state |= STATE_SYSTEM_UNAVAILABLE;
 
   return state;
 }