diff -r 000000000000 -r 6474c204b198 browser/metro/base/content/startui/startui-scripts.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/metro/base/content/startui/startui-scripts.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,83 @@
+/* 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";
+
+let Cc = Components.classes;
+let Ci = Components.interfaces;
+let Cu = Components.utils;
+let Cr = Components.results;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
+                                  "resource://gre/modules/PlacesUtils.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "NetUtil",
+                                  "resource://gre/modules/NetUtil.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "NewTabUtils",
+                                  "resource://gre/modules/NewTabUtils.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "Promise",
+                                  "resource://gre/modules/Promise.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "Task",
+                                  "resource://gre/modules/Task.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "CrossSlide",
+                                  "resource:///modules/CrossSlide.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "OS",
+                                  "resource://gre/modules/osfile.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "View",
+                                  "resource:///modules/View.jsm");
+
+XPCOMUtils.defineLazyServiceGetter(window, "gHistSvc",
+                                   "@mozilla.org/browser/nav-history-service;1",
+                                   "nsINavHistoryService",
+                                   "nsIBrowserHistory");
+
+let ScriptContexts = {};
+[
+  ["Util", "chrome://browser/content/Util.js"],
+  ["Site", "chrome://browser/content/Site.js"],
+  ["StartUI", "chrome://browser/content/StartUI.js"],
+  ["Bookmarks", "chrome://browser/content/bookmarks.js"],
+  ["BookmarksView", "chrome://browser/content/BookmarksView.js"],
+  ["HistoryView", "chrome://browser/content/HistoryView.js"],
+  ["TopSitesView", "chrome://browser/content/TopSitesView.js"],
+  ["RemoteTabsView", "chrome://browser/content/RemoteTabsView.js"],
+  ["BookmarksStartView", "chrome://browser/content/BookmarksView.js"],
+  ["HistoryStartView", "chrome://browser/content/HistoryView.js"],
+  ["TopSitesStartView", "chrome://browser/content/TopSitesView.js"],
+  ["RemoteTabsStartView", "chrome://browser/content/RemoteTabsView.js"],
+  ["ItemPinHelper", "chrome://browser/content/helperui/ItemPinHelper.js"],
+].forEach(function (aScript) {
+  let [name, script] = aScript;
+  XPCOMUtils.defineLazyGetter(window, name, function() {
+    let sandbox;
+    if (script in ScriptContexts) {
+      sandbox = ScriptContexts[script];
+    } else {
+      sandbox = ScriptContexts[script] = {};
+      Services.scriptloader.loadSubScript(script, sandbox);
+    }
+    return sandbox[name];
+  });
+});
+
+// singleton
+XPCOMUtils.defineLazyGetter(this, "TopSites", function() {
+  return StartUI.chromeWin.TopSites;
+});
+
+#ifdef MOZ_SERVICES_SYNC
+XPCOMUtils.defineLazyGetter(this, "Weave", function() {
+  Components.utils.import("resource://services-sync/main.js");
+  return Weave;
+});
+#endif