This test passes if there is no crash.
AXRole: AXWebArea
AXRoleDescription: HTML content
AXChildren: <array of size 1>
AXHelp: 
AXParent: <AXWebArea>
AXSize: NSSize: {800, 600}
AXTitle: 
AXDescription: 
AXValue: 
AXFocused: 0
AXEnabled: 1
AXWindow: <AXWebArea>
AXSelectedTextMarkerRange: (null)
AXStartTextMarker: <AXWebArea>
AXEndTextMarker: <AXWebArea>
AXVisited: 0
AXLinkedUIElements: <array of size 0>
AXSelected: 0
AXBlockQuoteLevel: 0
AXTopLevelUIElement: <AXWebArea>
AXLanguage: 
AXDOMIdentifier: 
AXDOMClassList: <array of size 0>
AXLinkUIElements: <array of size 0>
AXLoaded: 1
AXLayoutCount: 2
AXLoadingProgress: 1
AXURL: LayoutTests/accessibility/parent-delete.html
AXCaretBrowsingEnabled: 0
AXPreventKeyboardDOMEventDispatch: 0
AXElementBusy: 0