Add support for deferring app initialization when testing.

remoting/webapp/crd/js/remoting.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.
 
 'use strict';
 
 /** @suppress {duplicate} */
 var remoting = remoting || {};
 
 /** @type {remoting.HostSession} */ remoting.hostSession = null;
@@ skipping 29 matching lines @@
   var dialog_border = document.getElementById('auth-dialog-border');
   // TODO(garykac): Refactor to remove auth dialog from the main html file
   // and place in a separate window.
   remoting.authDialog = new remoting.AuthDialog(dialog_border);
   remoting.windowShape.addCallback(remoting.authDialog);
 
   button.addEventListener('click', consentGranted, false);
 }
 
 /**
+ * Entry point for test code. In order to make test and production code as
+ * similar as possible, the same entry point is used for production code,
+ * but since production code should never have 'source' set to 'about_page',
+ * it will continue with initialization immediately. As a fail-safe, the
+ * mechanism by which initialization completes when under test is controlled
+ * by a simple UI, making it possible to use the app even if the previous
+ * assumption fails to hold in some corner cases.
+ */
+remoting.initForTesting = function() {

[garykac, 2014/12/02 16:43:22]

This belongs in (the newly created) crd_main.js.

+  var urlParams = getUrlParameters_();
+  if (urlParams['source'] === 'about_page') {
+    document.getElementById('browser-test-continue-init').addEventListener(
+        'click', remoting.init, false);
+    document.getElementById('browser-test-deferred-init').hidden = false;
+  } else {
+    remoting.init();
+  }
+};
+
+/**
  * Entry point for app initialization.
  */
 remoting.init = function() {
   if (base.isAppsV2()) {
     var htmlNode = /** @type {HTMLElement} */ (document.body.parentNode);
     htmlNode.classList.add('apps-v2');
   } else {
     migrateLocalToChromeStorage_();
   }
 
@@ skipping 458 matching lines @@
   ];
   for (var setting in window.localStorage) {
     if (oauthSettings.indexOf(setting) == -1) {
       var copy = {}
       copy[setting] = window.localStorage.getItem(setting);
       chrome.storage.local.set(copy);
       window.localStorage.removeItem(setting);
     }
   }
 }