diff -r 000000000000 -r 6474c204b198 dom/tests/browser/browser_frame_elements.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/tests/browser/browser_frame_elements.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,87 @@
+/* -*- Mode: Javascript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* 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/. */
+
+const TEST_URI = "http://example.com/browser/dom/tests/browser/browser_frame_elements.html";
+let gWindow;
+
+function test() {
+  waitForExplicitFinish();
+
+  var tab = gBrowser.addTab(TEST_URI);
+  gBrowser.selectedTab = tab;
+  var browser = gBrowser.selectedBrowser;
+
+  registerCleanupFunction(function () {
+    gBrowser.removeTab(tab);
+    gWindow = null;
+  });
+
+  browser.addEventListener("DOMContentLoaded", function onLoad(event) {
+    browser.removeEventListener("DOMContentLoaded", onLoad, false);
+    executeSoon(function test_executeSoon() {
+      gWindow = browser.contentWindow;
+      startTests();
+    });
+  }, false);
+}
+
+function startTests() {
+  info("Frame tests started");
+
+  info("Checking top window");
+  let windowUtils = getWindowUtils(gWindow);
+  is (windowUtils.containerElement, gBrowser.selectedBrowser, "Container element for main window is xul:browser");
+  is (gWindow.top, gWindow, "gWindow is top");
+  is (gWindow.parent, gWindow, "gWindow is parent");
+
+  info("Checking about:blank iframe");
+  let iframeBlank = gWindow.document.querySelector("#iframe-blank");
+  ok (iframeBlank, "Iframe exists on page");
+  let iframeBlankUtils = getWindowUtils(iframeBlank.contentWindow);
+  is (iframeBlankUtils.containerElement, iframeBlank, "Container element for iframe window is iframe");
+  is (iframeBlank.contentWindow.top, gWindow, "gWindow is top");
+  is (iframeBlank.contentWindow.parent, gWindow, "gWindow is parent");
+
+  info("Checking iframe with data url src");
+  let iframeDataUrl = gWindow.document.querySelector("#iframe-data-url");
+  ok (iframeDataUrl, "Iframe exists on page");
+  let iframeDataUrlUtils = getWindowUtils(iframeDataUrl.contentWindow);
+  is (iframeDataUrlUtils.containerElement, iframeDataUrl, "Container element for iframe window is iframe");
+  is (iframeDataUrl.contentWindow.top, gWindow, "gWindow is top");
+  is (iframeDataUrl.contentWindow.parent, gWindow, "gWindow is parent");
+
+  info("Checking object with data url data attribute");
+  let objectDataUrl = gWindow.document.querySelector("#object-data-url");
+  ok (objectDataUrl, "Object exists on page");
+  let objectDataUrlUtils = getWindowUtils(objectDataUrl.contentWindow);
+  is (objectDataUrlUtils.containerElement, objectDataUrl, "Container element for object window is the object");
+  is (objectDataUrl.contentWindow.top, gWindow, "gWindow is top");
+  is (objectDataUrl.contentWindow.parent, gWindow, "gWindow is parent");
+
+  info("Granting special powers for mozbrowser");
+  SpecialPowers.addPermission("browser", true, gWindow.document);
+  SpecialPowers.setBoolPref('dom.mozBrowserFramesEnabled', true);
+
+  info("Checking mozbrowser iframe");
+  let mozBrowserFrame = gWindow.document.createElement("iframe");
+  mozBrowserFrame.setAttribute("mozbrowser", "");
+  gWindow.document.body.appendChild(mozBrowserFrame);
+  is (mozBrowserFrame.contentWindow.top, mozBrowserFrame.contentWindow, "Mozbrowser top == iframe window");
+  is (mozBrowserFrame.contentWindow.parent, mozBrowserFrame.contentWindow, "Mozbrowser parent == iframe window");
+
+  info("Revoking special powers for mozbrowser");
+  SpecialPowers.clearUserPref('dom.mozBrowserFramesEnabled')
+  SpecialPowers.removePermission("browser", gWindow.document);
+
+  finish();
+}
+
+function getWindowUtils(window)
+{
+  return window.
+    QueryInterface(Components.interfaces.nsIInterfaceRequestor).
+    getInterface(Components.interfaces.nsIDOMWindowUtils);
+}