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

AXWebArea
++AXMenu
++++AXMenuItem AXExpanded=0 AXTitle='New'
++++AXMenuItem AXExpanded=1 AXTitle='Open'
++++AXMenuItem AXExpanded=0 AXTitle='Save'
++++AXMenuItem AXExpanded=1 AXTitle='Quit'
++AXSplitter
++AXSplitter
++AXSplitter