chromium/content/test/data/accessibility/aria/aria-spinbutton-expected-mac.txt

AXWebArea AXRoleDescription='HTML content'
++AXIncrementor AXRoleDescription='stepper' AXValue=5
++AXIncrementor AXRoleDescription='stepper' AXValue=5
++AXIncrementor AXRoleDescription='stepper' AXValue=0
++AXIncrementor AXRoleDescription='stepper' AXValue=0
++AXIncrementor AXRoleDescription='stepper' AXValue=0