Drop chrome.runtime.onMessage events

We can use Backbone.Events instead.

// FREEBIE

js/background.js

@@ -44,6 +44,7 @@
             return -1;
         }
     };
+    window.events = _.clone(Backbone.Events);
     var accountManager;
     window.getAccountManager = function() {
         if (!accountManager) {
@@ -58,12 +59,13 @@
                 }
                 Whisper.Registration.markDone();
                 console.log("dispatching registration event");
-                extension.trigger('registration_done');
+                events.trigger('registration_done');
             });
         }
         return accountManager;
     };
 
+
     storage.fetch();
     storage.onready(function() {
         window.dispatchEvent(new Event('storage_ready'));
@@ -75,7 +77,7 @@
         }
 
         console.log("listening for registration events");
-        extension.on('registration_done', function() {
+        events.on('registration_done', function() {
             console.log("handling registration event");
             extension.keepAwake();
             init(true);

js/chromium.js

@@ -27,23 +27,6 @@
         return self;
     }());
 
-    window.extension.trigger = function (name, object) {
-        chrome.runtime.sendMessage(null, { name: name, data: object });
-    };
-
-    window.extension.on = function (name, callback) {
-        // this causes every listener to fire on every message.
-        // if we eventually end up with lots of listeners (lol)
-        // might be worth making a map of 'name' -> [callbacks, ...]
-        // so we can fire a single listener that calls only the necessary
-        // calllbacks for that message name
-        chrome.runtime.onMessage.addListener(function(e) {
-            if (e.name === name) {
-                callback(e.data);
-            }
-        });
-    };
-
     extension.windows = {
         open: function(options, callback) {
             if (chrome.windows) {

js/rotate_signed_prekey_listener.js

@@ -49,7 +49,7 @@
             if (Whisper.Registration.isDone()) {
                 setTimeoutForNextRun();
             }
-            extension.on('registration_done', function() {
+            window.events.on('registration_done', function() {
                 scheduleNextRotation();
                 setTimeoutForNextRun();
             });