Remote Assistance on Chrome OS Part III - NativeMessageHost

chrome/test/data/extensions/api_test/native_messaging/test.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 var appName = 'com.google.chrome.test.echo';
 
 chrome.test.getConfig(function(config) {
     chrome.test.runTests([
       function invalidHostName() {
         var message = {"text": "Hello!"};
@@ skipping 69 matching lines @@
             chrome.test.succeed();
           else
             port.postMessage(messagesToSend[currentMessage]);
         });
       },
 
       // Verify that the case when host stops itself is handled properly.
       function stopHost() {
         port = chrome.extension.connectNative(appName);
 
-        port.onMessage.addListener(function(message) {
-          port.onDisconnect.addListener(chrome.test.callback(
-              function() {},
-              "Native host has exited."));
-        });
+        port.onDisconnect.addListener(
+            chrome.test.callback(function() {}, "Native host has exited."));
 
         // Send first message that should stop the host.
         port.postMessage({ "stopHostTest": true });
       }
     ]);
 });