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

AXWebArea AXRoleDescription='HTML content'
++AXGroup AXRoleDescription='group'
++++AXStaticText AXRoleDescription='text' AXValue='An unnamed section element gets the generic role.'
++AXGroup AXSubrole=AXLandmarkRegion AXDescription='name' AXRoleDescription='region'
++++AXStaticText AXRoleDescription='text' AXValue='Named section element #1 gets the region role'
++AXGroup AXSubrole=AXLandmarkRegion AXRoleDescription='region' AXTitle='Named section element #2 gets the region role'
++++AXGroup AXRoleDescription='group'
++++++AXStaticText AXRoleDescription='text' AXValue='Named section element #2 gets the region role'
++AXGroup AXSubrole=AXLandmarkRegion AXDescription='name' AXRoleDescription='region'
++++AXStaticText AXRoleDescription='text' AXValue='Named section element #3 gets the region role'