Refactor oobe/login screens so lock screen can be loaded faster.

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

-// Copyright 2013 The Chromium Authors. All rights reserved.
+// Copyright 2016 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.
+ * @fileoverview Common OOBE controller methods. This method is shared between
+ * OOBE, login, and the lock screen. Add only methods that need to be shared
+ * between all *three* screens here, as each additional method increases the
+ * time it takes to show the lock screen.
+ *
+ * If a method needs to be shared between the oobe and login screens, add it to
+ * login_non_lock_shared.js.
  */
 
 <include src="test_util.js">
 <include src="../../../../../ui/login/screen.js">
 <include src="screen_context.js">
 <include src="../user_images_grid.js">
 <include src="apps_menu.js">
 <include src="../../../../../ui/login/bubble.js">
 <include src="../../../../../ui/login/display_manager.js">
 <include src="header_bar.js">
-<include src="network_dropdown.js">
-<include src="oobe_screen_reset_confirmation_overlay.js">
-<include src="oobe_screen_reset.js">
-<include src="oobe_screen_autolaunch.js">
-<include src="oobe_screen_enable_kiosk.js">
-<include src="oobe_screen_terms_of_service.js">
-<include src="oobe_screen_user_image.js">
+
+<include src="../../../../../ui/login/account_picker/user_pod_template.js">
+
 <include src="../../../../../ui/login/account_picker/screen_account_picker.js">
-<include src="screen_app_launch_splash.js">
-<include src="screen_error_message.js">
-<include src="screen_gaia_signin.js">
-<include src="screen_password_changed.js">
-<include src="screen_supervised_user_creation.js">
-<include src="screen_tpm_error.js">
-<include src="screen_wrong_hwid.js">
-<include src="screen_confirm_password.js">
-<include src="screen_fatal_error.js">
-<include src="screen_device_disabled.js">
-<include src="screen_unrecoverable_cryptohome_error.js">
+
 <include src="../../../../../ui/login/login_ui_tools.js">
 <include src="../../../../../ui/login/account_picker/user_pod_row.js">
 <include src="../../../../../ui/login/resource_loader.js">
 
 cr.define('cr.ui', function() {
   var DisplayManager = cr.ui.login.DisplayManager;
 
   /**
   * Constructs an Out of box controller. It manages initialization of screens,
   * transitions, error messages display.
@@ skipping 46 matching lines @@
    * @param {boolean} show True if version label should be visible.
    */
   Oobe.showVersion = function(show) {
     Oobe.getInstance().showVersion(show);
   };
 
   /**
    * Update body class to switch between OOBE UI and Login UI.
    */
   Oobe.showOobeUI = function(showOobe) {
+    console.log('Oobe.showOobeUI(' + showOobe + ')');
     if (showOobe) {
       document.body.classList.add('oobe-display');
 
       // Callback to animate the header bar in.
       var showHeaderBar = function() {
         login.HeaderBar.animateIn(false, function() {
           chrome.send('headerBarVisible');
         });
       };
       // Start asynchronously so the OOBE network screen comes in first.
@@ skipping 286 matching lines @@
 
 // Allow selection events on components with editable text (password field)
 // bug (http://code.google.com/p/chromium/issues/detail?id=125863)
 disableTextSelectAndDrag(function(e) {
   var src = e.target;
   return src instanceof HTMLTextAreaElement ||
          src instanceof HTMLInputElement &&
          /text|password|search/.test(src.type);
 });
 
-// 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);
 
 (function() {
   'use strict';
 
   document.addEventListener('DOMContentLoaded', function() {
-    // 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();
+    Oobe.initialize();
   });
 })();
+