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

AXWebArea
++AXHeading AXDisclosureLevel=0 AXTitle='Heading 1' AXValue=1
++++AXStaticText AXValue='Heading 1'
++AXHeading AXDisclosureLevel=1 AXTitle='Heading 2' AXValue=2
++++AXStaticText AXValue='Heading 2'
++AXHeading AXDisclosureLevel=2 AXTitle='Heading 3' AXValue=3
++++AXStaticText AXValue='Heading 3'
++AXHeading AXDisclosureLevel=3 AXTitle='Heading 4' AXValue=4
++++AXStaticText AXValue='Heading 4'
++AXHeading AXDisclosureLevel=4 AXTitle='Heading 5' AXValue=5
++++AXStaticText AXValue='Heading 5'
++AXHeading AXDisclosureLevel=5 AXTitle='Heading 6' AXValue=6
++++AXStaticText AXValue='Heading 6'