chromium/content/test/data/accessibility/aria/aria-required-expected-win.txt

ROLE_SYSTEM_DOCUMENT READONLY FOCUSABLE
++ROLE_SYSTEM_GROUPING IA2_STATE_REQUIRED
++++ROLE_SYSTEM_RADIOBUTTON IA2_STATE_CHECKABLE checkable:true
++++ROLE_SYSTEM_RADIOBUTTON IA2_STATE_CHECKABLE checkable:true