chromium/chrome/test/data/pdf/accessibility/image_alt_text-expected-mac.txt

AXGroup AXDescription='PDF document containing 1 page'
++AXGroup AXSubrole=AXLandmarkRegion AXDescription='Page 1'
++++AXGroup
++++++AXImage AXDescription='Image 1'
++++++AXImage AXDescription='Image 2'
++++++AXImage AXDescription='Image 3'