Bug 1221270 - Schedule and perform GMP updates in AddonUpdateService; r=snorp

This patch moves the GMP update process from browser.js startup to
AddonUpdateService. It also uses the Gecko:ScheduleRun event in
GeckoService to schedule headless runs in order to perform updates
periodically.

mobile/android/chrome/content/browser.js

@@ -116,9 +116,6 @@ XPCOMUtils.defineLazyModuleGetter(this, "SharedPreferences",
 XPCOMUtils.defineLazyModuleGetter(this, "Notifications",
                                   "resource://gre/modules/Notifications.jsm");
 
-XPCOMUtils.defineLazyModuleGetter(this, "GMPInstallManager",
-                                  "resource://gre/modules/GMPInstallManager.jsm");
-
 XPCOMUtils.defineLazyModuleGetter(this, "ReaderMode", "resource://gre/modules/ReaderMode.jsm");
 
 XPCOMUtils.defineLazyModuleGetter(this, "Snackbars", "resource://gre/modules/Snackbars.jsm");
@@ -617,11 +614,6 @@ var BrowserApp = {
       InitLater(() => Cc["@mozilla.org/login-manager;1"].getService(Ci.nsILoginManager));
       InitLater(() => LoginManagerParent.init(), window, "LoginManagerParent");
 
-      InitLater(() => {
-          BrowserApp.gmpInstallManager = new GMPInstallManager();
-          BrowserApp.gmpInstallManager.simpleCheckAndInstall().then(null, () => {});
-      }, BrowserApp, "gmpInstallManager");
-
     }, false);
   },
 
@@ -1390,10 +1382,6 @@ var BrowserApp = {
   },
 
   quit: function quit(aClear = { sanitize: {}, dontSaveSession: false }) {
-    if (this.gmpInstallManager) {
-      this.gmpInstallManager.uninit();
-    }
-
     // Notify all windows that an application quit has been requested.
     let cancelQuit = Cc["@mozilla.org/supports-PRBool;1"].createInstance(Ci.nsISupportsPRBool);
     Services.obs.notifyObservers(cancelQuit, "quit-application-requested", "restart");

mobile/android/components/AddonUpdateService.js

@@ -15,6 +15,12 @@ XPCOMUtils.defineLazyModuleGetter(this, "AddonManagerPrivate",
 XPCOMUtils.defineLazyModuleGetter(this, "AddonRepository",
                                   "resource://gre/modules/addons/AddonRepository.jsm");
 
+XPCOMUtils.defineLazyModuleGetter(this, "GMPInstallManager",
+                                  "resource://gre/modules/GMPInstallManager.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "Messaging",
+                                  "resource://gre/modules/Messaging.jsm");
+
 XPCOMUtils.defineLazyModuleGetter(this, "OS", "resource://gre/modules/osfile.jsm");
 
 function getPref(func, preference, defaultValue) {
@@ -30,6 +36,7 @@ function getPref(func, preference, defaultValue) {
 // -----------------------------------------------------------------------
 
 const PREF_ADDON_UPDATE_ENABLED  = "extensions.autoupdate.enabled";
+const PREF_ADDON_UPDATE_INTERVAL = "extensions.autoupdate.interval";
 
 var gNeedsRestart = false;
 
@@ -50,6 +57,17 @@ AddonUpdateService.prototype = {
       return;
 
     AddonManagerPrivate.backgroundUpdateCheck();
+
+    let gmp = new GMPInstallManager();
+    gmp.simpleCheckAndInstall().then(null, () => {});
+
+    let interval = 1000 * getPref("getIntPref", PREF_ADDON_UPDATE_INTERVAL, 86400);
+    Messaging.sendRequest({
+      type: "Gecko:ScheduleRun",
+      action: "update-addons",
+      trigger: interval,
+      interval: interval,
+    });
   }
 };