chrome/test/data/extensions/platform_apps/launch/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.

chrome.app.runtime.onLaunched.addListener(function() {
  chrome.test.sendMessage('Launched');
  chrome.test.notifyPass();
});