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

AXWebArea
++AXGroup
++++AXUnknown AXTitle='0:00'
++++++AXToolbar AXTitle='media control'
++++++AXToolbar AXTitle='media control'
++++++++AXToolbar AXTitle='media control'
++++++++++AXButton
++++++++++AXSlider AXValue='0'
++++++++++AXGroup
++++++++++++AXStaticText AXValue='0:00'
++++++++++AXButton