bug 472311 - Alert dialogs not being spoken, section 508 issue, r=aaronlev, r=enn

accessible/src/base/nsARIAMap.cpp

@@ -70,7 +70,7 @@ nsRoleMapEntry nsARIAMap::gWAIRoleMap[] =
   },
   {
     "alertdialog",
-    nsIAccessibleRole::ROLE_ALERT,
+    nsIAccessibleRole::ROLE_DIALOG,
     eNoValue,
     eNoAction,
     kNoReqStates,

toolkit/content/commonDialog.xul

@@ -8,7 +8,7 @@
 
 <dialog id="commonDialog"
         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul" 
-        role="alert"
+        aria-describedby="info.body"
         onload="commonDialogOnLoad();"
         ondialogaccept="return commonDialogOnAccept();"
         ondialogextra1="return commonDialogOnExtra1();"