nsIPrefetchService Interface

 Enumerate the items in the prefetch queue.  Each element in the
 enumeration is an nsIDOMLoadStatus.

 @param aIncludeNormalItems include normal prefetch items in the
        list.  This parameter is deprecated and must be TRUE,
        or NS_ERROR_INT_IMPLEMENTED will be thrown.
 @param aIncludeOfflineItems include items being fetched for offline
        use.  This parameter is deprecated and must be FALSE,
        or NS_ERROR_NOT_IMPLEMENTED will be thrown.

nsISimpleEnumerator enumerateQueue(in boolean aIncludeNormalItems, in boolean aIncludeOfflineItems)

 Enqueue a request to prefetch the specified URI.

 @param aURI the URI of the document to prefetch
 @param aReferrerURI the URI of the referring page
 @param aSource the DOM node (such as a <link> tag) that requested this
        fetch, or null if the prefetch was not requested by a DOM node.
 @param aExplicit the link element has an explicit prefetch link type

void prefetchURI(in nsIURI aURI, in nsIURI aReferrerURI, in nsIDOMNode aSource, in boolean aExplicit)

 @status DEPRECATED This method is no longer used, and will throw
 NS_ERROR_NOT_IMPLEMENTED.

void prefetchURIForOfflineUse(in nsIURI aURI, in nsIURI aReferrerURI, in nsIDOMNode aSource, in boolean aExplicit)