Single pod autofocus disabled for touch view mode. Delegate class created for ash interactions.

ui/login/account_picker/screen_account_picker.js

 // Copyright 2014 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 Account picker screen implementation.
  */
 
 login.createScreen('AccountPickerScreen', 'account-picker', function() {
   /**
@@ skipping 11 matching lines @@
       'setShouldShowApps',
       'showAppError',
       'updateUserImage',
       'setCapsLockState',
       'forceLockedUserPodFocus',
       'removeUser',
       'showBannerMessage',
       'showUserPodCustomIcon',
       'hideUserPodCustomIcon',
       'setAuthType',
+      'setTouchViewState',
       'setPublicSessionDisplayName',
       'setPublicSessionLocales',
       'setPublicSessionKeyboardLayouts',
     ],
 
     preferredWidth_: 0,
     preferredHeight_: 0,
 
     // Whether this screen is shown for the first time.
     firstShown_: true,
@@ skipping 64 matching lines @@
       // In case of the preselected pod onShow will be called once pod
       // receives focus.
       if (!podRow.preselectedPod)
         this.onShow();
     },
 
     /**
      * Event handler invoked when the page is shown and ready.
      */
     onShow: function() {
+      chrome.send('getTouchViewState');
       if (!this.firstShown_) return;
       this.firstShown_ = false;
 
       // Ensure that login is actually visible.
       window.requestAnimationFrame(function() {
         chrome.send('accountPickerReady');
         chrome.send('loginVisible', ['account-picker']);
       });
     },
 
@@ skipping 171 matching lines @@
      * @param {string} username Username of selected user
      * @param {number} authType Authentication type, must be a valid value in
      *                          the AUTH_TYPE enum in user_pod_row.js.
      * @param {string} value The initial value to use for authentication.
      */
     setAuthType: function(username, authType, value) {
       $('pod-row').setAuthType(username, authType, value);
     },
 
     /**
+     * Sets the state of touch view mode.
+     * @param {boolean} isTouchViewEnabled true if the mode is on.
+     */
+    setTouchViewState: function(isTouchViewEnabled) {
+      $('pod-row').setTouchViewState(isTouchViewEnabled);
+    },
+
+    /**
      * Updates the display name shown on a public session pod.
      * @param {string} userID The user ID of the public session
      * @param {string} displayName The new display name
      */
     setPublicSessionDisplayName: function(userID, displayName) {
       $('pod-row').setPublicSessionDisplayName(userID, displayName);
     },
 
     /**
      * Updates the list of locales available for a public session.
@@ skipping 19 matching lines @@
      * @param {string} locale The locale to which this list of keyboard layouts
      *     applies
      * @param {!Object} list List of available keyboard layouts
      */
     setPublicSessionKeyboardLayouts: function(userID, locale, list) {
       $('pod-row').setPublicSessionKeyboardLayouts(userID, locale, list);
     }
   };
 });