Posted when all history items have been removed from the web history.
The notification object is the web history from which the history items were removed. The userInfo dictionary contains the following information:
KeyValue@”WebHistoryItemsKey”An NSArray object containing the removed items.
Available in Mac OS X v10.2 with Safari 1.0 and later.
Declaration Syntax Version Information- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)