diff -r 000000000000 -r 6474c204b198 browser/devtools/framework/test/head.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/framework/test/head.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/. */
+
+let TargetFactory = gDevTools.TargetFactory;
+
+let tempScope = {};
+Components.utils.import("resource://gre/modules/devtools/Console.jsm", tempScope);
+let console = tempScope.console;
+Components.utils.import("resource://gre/modules/Promise.jsm", tempScope);
+let promise = tempScope.Promise;
+
+let {devtools} = Components.utils.import("resource://gre/modules/devtools/Loader.jsm", {});
+let TargetFactory = devtools.TargetFactory;
+
+gDevTools.testing = true;
+SimpleTest.registerCleanupFunction(() => {
+  gDevTools.testing = false;
+});
+
+/**
+ * Open a new tab at a URL and call a callback on load
+ */
+function addTab(aURL, aCallback)
+{
+  waitForExplicitFinish();
+
+  gBrowser.selectedTab = gBrowser.addTab();
+  if (aURL != null) {
+    content.location = aURL;
+  }
+
+  let deferred = promise.defer();
+
+  let tab = gBrowser.selectedTab;
+  let target = TargetFactory.forTab(gBrowser.selectedTab);
+  let browser = gBrowser.getBrowserForTab(tab);
+
+  function onTabLoad() {
+    browser.removeEventListener("load", onTabLoad, true);
+
+    if (aCallback != null) {
+      aCallback(browser, tab, browser.contentDocument);
+    }
+
+    deferred.resolve({ browser: browser, tab: tab, target: target });
+  }
+
+  browser.addEventListener("load", onTabLoad, true);
+  return deferred.promise;
+}
+
+registerCleanupFunction(function tearDown() {
+  while (gBrowser.tabs.length > 1) {
+    gBrowser.removeCurrentTab();
+  }
+});
+
+function synthesizeKeyFromKeyTag(aKeyId, document) {
+  let key = document.getElementById(aKeyId);
+  isnot(key, null, "Successfully retrieved the <key> node");
+
+  let modifiersAttr = key.getAttribute("modifiers");
+
+  let name = null;
+
+  if (key.getAttribute("keycode"))
+    name = key.getAttribute("keycode");
+  else if (key.getAttribute("key"))
+    name = key.getAttribute("key");
+
+  isnot(name, null, "Successfully retrieved keycode/key");
+
+  let modifiers = {
+    shiftKey: modifiersAttr.match("shift"),
+    ctrlKey: modifiersAttr.match("ctrl"),
+    altKey: modifiersAttr.match("alt"),
+    metaKey: modifiersAttr.match("meta"),
+    accelKey: modifiersAttr.match("accel")
+  }
+
+  EventUtils.synthesizeKey(name, modifiers);
+}