chromium/content/test/data/accessibility/html/navigation-expected-mac.txt

AXWebArea AXRoleDescription='HTML content'
++AXGroup AXSubrole=AXLandmarkNavigation AXRoleDescription='navigation'
++++AXLink AXDescription='Don't click on me' AXRoleDescription='link'
++++++AXStaticText AXRoleDescription='text' AXValue='Don't click on me'