Issue 2325 - Add a way to set settings in libadblockplus for FRP and automatic updates

lib/prefs.js

Index: lib/prefs.js
===================================================================
--- a/lib/prefs.js
+++ b/lib/prefs.js
@@ -41,9 +41,13 @@
   update_hard_expiration: 0,
   currentVersion: "0.0",
   notificationdata: {},
-  notificationurl: "https://notification.adblockplus.org/notification.json"
+  notificationurl: "https://notification.adblockplus.org/notification.json",
+  suppress_first_run_page: false,
+  disable_auto_updates: false
 };
 
+let preconfigurable = ["suppress_first_run_page", "disable_auto_updates"];
+
 let values = Object.create(defaults);
 let path = _fileSystem.resolve("prefs.json");
 let listeners = [];
@@ -75,6 +79,15 @@
 
 function load()
 {
+  // Set default prefs based on _preconfiguredPrefs
+  for (let key in _preconfiguredPrefs)
+  {
+    if (preconfigurable.indexOf(key) != -1)
+    {
+      values[key] = _preconfiguredPrefs[key];
+    }
+  }
+
   _fileSystem.read(path, function(result)
   {
     // prefs.json is expected to be missing, ignore errors reading file