chromium/content/test/data/accessibility/aria/aria-modal-move-focus-expected-mac.txt

AXWebArea
++AXGroup AXSubrole=AXApplicationDialog
++++AXStaticText AXValue='Nonmodal'
++AXButton AXTitle='Outer Button'
++AXGroup AXSubrole=AXApplicationDialog AXDescription='modal dialog'
++++AXButton AXTitle='Inner Button'