Bug 1072980 - Don't pass CPOW as notificationCallbacks in nsIAboutProtocol shim (r=ally)

toolkit/components/addoncompat/RemoteAddonsChild.jsm

@@ -202,9 +202,6 @@ AboutProtocolChannel.prototype = {
     let rval = cpmm.sendRpcMessage("Addons:AboutProtocol:OpenChannel", {
       uri: this.URI.spec,
       contractID: this._contractID
-    }, {
-      notificationCallbacks: this.notificationCallbacks,
-      loadGroupNotificationCallbacks: this.loadGroup ? this.loadGroup.notificationCallbacks : null,
     });
 
     if (rval.length != 1) {

toolkit/components/addoncompat/RemoteAddonsParent.jsm

@@ -240,12 +240,8 @@ let AboutProtocolParent = {
     let module = Cc[contractID].getService(Ci.nsIAboutModule);
     try {
       let channel = module.newChannel(uri, null);
-      channel.notificationCallbacks = msg.objects.notificationCallbacks;
+      channel.notificationCallbacks = null;
-      if (msg.objects.loadGroupNotificationCallbacks) {
+      channel.loadGroup = null;
-        channel.loadGroup = {notificationCallbacks: msg.objects.loadGroupNotificationCallbacks};
-      } else {
-        channel.loadGroup = null;
-      }
       let stream = channel.open();
       let data = NetUtil.readInputStreamToString(stream, stream.available(), {});
       return {