diff -r 000000000000 -r 6474c204b198 browser/metro/base/content/dbg-metro-actors.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/metro/base/content/dbg-metro-actors.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,37 @@
+/* -*- Mode: javascript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+const error = Components.utils.reportError;
+
+/* Metrofx specific actors, modelled from the android fennec actors */
+
+/** aConnection DebuggerServerConnection, the conection to the client.
+ */
+function createRootActor(aConnection) {
+  let parameters = {
+    tabList: new MetroTabList(aConnection),
+    globalActorFactories: DebuggerServer.globalActorFactories,
+    onShutdown: sendShutdownEvent
+  };
+  return new RootActor(aConnection, parameters);
+}
+
+/** aConnection DebuggerServerConnection, the conection to the client.
+ */
+function MetroTabList(aConnection) {
+  BrowserTabList.call(this, aConnection);
+}
+
+MetroTabList.prototype = Object.create(BrowserTabList.prototype);
+MetroTabList.prototype.constructor = MetroTabList;
+
+MetroTabList.prototype._getSelectedBrowser = function(aWindow) {
+  return aWindow.Browser.selectedBrowser;
+};
+
+MetroTabList.prototype._getChildren = function(aWindow) {
+  return aWindow.Browser.browsers;
+};