Polished UI for the host side of pairing flow.

chrome/browser/resources/chromeos/login/login_common.js

 // Copyright 2013 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.
 
 /**
  * @fileoverview Common OOBE controller methods.
  */
 
 <include src="../../../../../ui/login/screen.js">
 <include src="screen_context.js">
@@ skipping 335 matching lines @@
 });
 
 // Register assets for async loading.
 [{
   id: SCREEN_OOBE_ENROLLMENT,
   html: [{ url: 'chrome://oobe/enrollment.html', targetID: 'inner-container' }],
   css: ['chrome://oobe/enrollment.css'],
   js: ['chrome://oobe/enrollment.js']
 }].forEach(cr.ui.login.ResourceLoader.registerAssets);
 
-document.addEventListener('DOMContentLoaded', function() {
+(function() {
   'use strict';
 
-  // Immediately load async assets.
-  // TODO(dconnelly): remove this at some point and only load as needed.
-  // See crbug.com/236426
-  cr.ui.login.ResourceLoader.loadAssets(SCREEN_OOBE_ENROLLMENT, function() {
-    // This screen is async-loaded so we manually trigger i18n processing.
-    i18nTemplate.process($('oauth-enrollment'), loadTimeData);
-    // Delayed binding since this isn't defined yet.
-    login.OAuthEnrollmentScreen.register();
+  function initializeOobe() {
+    // Immediately load async assets.
+    // TODO(dconnelly): remove this at some point and only load as needed.
+    // See crbug.com/236426
+    cr.ui.login.ResourceLoader.loadAssets(SCREEN_OOBE_ENROLLMENT, function() {
+      // This screen is async-loaded so we manually trigger i18n processing.
+      i18nTemplate.process($('oauth-enrollment'), loadTimeData);
+      // Delayed binding since this isn't defined yet.
+      login.OAuthEnrollmentScreen.register();
+    });
+
+    cr.ui.Oobe.initialize();
+  }
+
+  document.addEventListener('DOMContentLoaded', function() {
+    if (!WAIT_FOR_POLYMER) {
+      initializeOobe();
+      return;
+    }
+    window.addEventListener('polymer-ready', function() {

[Nikita (slow), 2014/09/25 20:19:59]

Who generates this event?

[dzhioev (left Google), 2014/09/26 22:56:10]

Polymer does, when it is loaded and initialized.
https://www.polymer-project.org/docs/polymer/polymer.html#polymer-ready

+      initializeOobe();
+    });
   });
-
-  // Delayed binding since this isn't defined yet.
-  cr.ui.Oobe.initialize();
-});
+})();