diff -r 000000000000 -r 6474c204b198 tools/quitter/QuitterObserver.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/quitter/QuitterObserver.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,70 @@
+/* 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/. */
+
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+
+const CHILD_SCRIPT = "chrome://quitter/content/contentscript.js";
+
+/* XPCOM gunk */
+function QuitterObserver() {}
+
+QuitterObserver.prototype = {
+  classDescription: "Quitter Observer for use in testing.",
+  classID:          Components.ID("{c235a986-5ac1-4f28-ad73-825dae9bad90}"),
+  contractID:       "@mozilla.org/quitter-observer;1",
+  QueryInterface:   XPCOMUtils.generateQI([Components.interfaces.nsIObserver]),
+  _xpcom_categories: [{category: "profile-after-change", service: true }],
+  isFrameScriptLoaded: false,
+
+  observe: function(aSubject, aTopic, aData)
+  {
+    if (aTopic == "profile-after-change") {
+      this.init();
+    } else if (!this.isFrameScriptLoaded &&
+               aTopic == "chrome-document-global-created") {
+
+      var messageManager = Cc["@mozilla.org/globalmessagemanager;1"].
+                           getService(Ci.nsIMessageBroadcaster);
+      // Register for any messages our API needs us to handle
+      messageManager.addMessageListener("Quitter.Quit", this);
+
+      messageManager.loadFrameScript(CHILD_SCRIPT, true);
+      this.isFrameScriptLoaded = true;
+    } else if (aTopic == "xpcom-shutdown") {
+      this.uninit();
+    }
+  },
+
+  init: function()
+  {
+    var obs = Services.obs;
+    obs.addObserver(this, "xpcom-shutdown", false);
+    obs.addObserver(this, "chrome-document-global-created", false);
+  },
+
+  uninit: function()
+  {
+    var obs = Services.obs;
+    obs.removeObserver(this, "chrome-document-global-created", false);
+  },
+
+  /**
+   * messageManager callback function
+   * This will get requests from our API in the window and process them in chrome for it
+   **/
+  receiveMessage: function(aMessage) {
+    switch(aMessage.name) {
+      case "Quitter.Quit":
+        let appStartup = Cc["@mozilla.org/toolkit/app-startup;1"].getService(Ci.nsIAppStartup);
+        appStartup.quit(Ci.nsIAppStartup.eForceQuit);
+        break;
+    }
+  }
+};
+
+const NSGetFactory = XPCOMUtils.generateNSGetFactory([QuitterObserver]);