diff -r 000000000000 -r 6474c204b198 mobile/android/components/AddonUpdateService.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/components/AddonUpdateService.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,115 @@
+/* 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 Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cu = Components.utils;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "AddonManager",
+                                  "resource://gre/modules/AddonManager.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "AddonRepository",
+                                  "resource://gre/modules/addons/AddonRepository.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "OS", "resource://gre/modules/osfile.jsm");
+
+function getPref(func, preference, defaultValue) {
+  try {
+    return Services.prefs[func](preference);
+  }
+  catch (e) {}
+  return defaultValue;
+}
+
+// -----------------------------------------------------------------------
+// Add-on auto-update management service
+// -----------------------------------------------------------------------
+
+const PREF_ADDON_UPDATE_ENABLED  = "extensions.autoupdate.enabled";
+
+var gNeedsRestart = false;
+
+function AddonUpdateService() {}
+
+AddonUpdateService.prototype = {
+  classDescription: "Add-on auto-update management",
+  classID: Components.ID("{93c8824c-9b87-45ae-bc90-5b82a1e4d877}"),
+  
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsITimerCallback]),
+
+  notify: function aus_notify(aTimer) {
+    if (aTimer && !getPref("getBoolPref", PREF_ADDON_UPDATE_ENABLED, true))
+      return;
+
+    // If we already auto-upgraded and installed new versions, ignore this check
+    if (gNeedsRestart)
+      return;
+
+    Services.io.offline = false;
+
+    // Assume we are doing a periodic update check
+    let reason = AddonManager.UPDATE_WHEN_PERIODIC_UPDATE;
+    if (!aTimer)
+      reason = AddonManager.UPDATE_WHEN_USER_REQUESTED;
+
+    AddonManager.getAddonsByTypes(null, function(aAddonList) {
+      aAddonList.forEach(function(aAddon) {
+        if (aAddon.permissions & AddonManager.PERM_CAN_UPGRADE) {
+          let data = Cc["@mozilla.org/supports-string;1"].createInstance(Ci.nsISupportsString);
+          data.data = JSON.stringify({ id: aAddon.id, name: aAddon.name });
+          Services.obs.notifyObservers(data, "addon-update-started", null);
+
+          let listener = new UpdateCheckListener();
+          aAddon.findUpdates(listener, reason);
+        }
+      });
+    });
+  }
+};
+
+// -----------------------------------------------------------------------
+// Add-on update listener. Starts a download for any add-on with a viable
+// update waiting
+// -----------------------------------------------------------------------
+
+function UpdateCheckListener() {
+  this._status = null;
+  this._version = null;
+}
+
+UpdateCheckListener.prototype = {
+  onCompatibilityUpdateAvailable: function(aAddon) {
+    this._status = "compatibility";
+  },
+
+  onUpdateAvailable: function(aAddon, aInstall) {
+    this._status = "update";
+    this._version = aInstall.version;
+    aInstall.install();
+  },
+
+  onNoUpdateAvailable: function(aAddon) {
+    if (!this._status)
+      this._status = "no-update";
+  },
+
+  onUpdateFinished: function(aAddon, aError) {
+    let data = Cc["@mozilla.org/supports-string;1"].createInstance(Ci.nsISupportsString);
+    if (this._version)
+      data.data = JSON.stringify({ id: aAddon.id, name: aAddon.name, version: this._version });
+    else
+      data.data = JSON.stringify({ id: aAddon.id, name: aAddon.name });
+
+    if (aError)
+      this._status = "error";
+
+    Services.obs.notifyObservers(data, "addon-update-ended", this._status);
+  }
+};
+
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory([AddonUpdateService]);
+