chromium/content/test/data/accessibility/aria/aria-activedescendant-expected-mac.txt

AXWebArea
++AXMenu AXDescription='parent node'
++++AXMenuItem AXTitle='Inactive descendant'
++++AXMenuItem AXTitle='Active descendant' AXValue=0
++++AXMenuItem AXTitle='Inactive descendant #2' AXValue=0