chromium/content/test/data/accessibility/mac/attributes/ax-key-shortcuts-value-expected.txt

button.accessibilityAttributeNames.has(AXKeyShortcutsValue)='yes'
button.accessibilityAttributeValue(AXKeyShortcutsValue)='Ctrl+X'
not_applicable.accessibilityAttributeNames.has(AXKeyShortcutsValue)='no'
not_applicable.accessibilityAttributeValue(AXKeyShortcutsValue)=NULL