Fix for bug 257338: "Delete Host" and "Delete Domain" features of the History Window do not work

r=bsmedberg, sr=neil

xpfe/components/history/resources/history.js

@@ -226,13 +226,13 @@ nsHistoryController.prototype =
         switch(command) {
         case "cmd_deleteByHostname":
             if (!gGlobalHistory)
-                gGlobalHistory = Components.classes["@mozilla.org/browser/global-history;1"].getService(Components.interfaces.nsIBrowserHistory);
+                gGlobalHistory = Components.classes["@mozilla.org/browser/global-history;2"].getService(Components.interfaces.nsIBrowserHistory);
             gGlobalHistory.removePagesFromHost(gLastHostname, false)
             return true;
 
         case "cmd_deleteByDomain":
             if (!gGlobalHistory)
-                gGlobalHistory = Components.classes["@mozilla.org/browser/global-history;1"].getService(Components.interfaces.nsIBrowserHistory);
+                gGlobalHistory = Components.classes["@mozilla.org/browser/global-history;2"].getService(Components.interfaces.nsIBrowserHistory);
             gGlobalHistory.removePagesFromHost(gLastDomain, true)
             return true;