nsIFeedResultService Interface

 Registers a Feed Result object with a globally accessible service
 so that it can be accessed by a singleton method outside the usual
 flow of control in document loading.

 @param   feedResult
          An object implementing nsIFeedResult representing the feed.

void addFeedResult(in nsIFeedResult feedResult)

 Adds a URI to the user's specified external feed handler, or live 
 bookmarks. 
 @param   uri
          The uri of the feed to add.
 @param   title
          The title of the feed to add.
 @param   subtitle
          The subtitle of the feed to add.
 @param   feedType
          The nsIFeed type of the feed.  See nsIFeed.idl

void addToClientReader(in AUTF8String uri, in AString title, in AString subtitle, in unsigned long feedType)

 Gets a Feed Handler object registered using addFeedResult.

 @param   uri
          The URI of the feed a handler is being requested for

nsIFeedResult getFeedResult(in nsIURI uri)

 Unregisters a Feed Handler object registered using addFeedResult.
 @param   uri
          The feed URI the handler was registered under. This must be
          the same *instance* the feed was registered under.

void removeFeedResult(in nsIURI uri)