Represent kiosk apps as user pods instead of menu items.

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

Index: chrome/browser/resources/chromeos/login/screen_account_picker.js
diff --git a/chrome/browser/resources/chromeos/login/screen_account_picker.js b/chrome/browser/resources/chromeos/login/screen_account_picker.js
index 267995542d855eda1cf053b1674f8588b79b2fb1..606fd190046f8893aadecd88a549da470e05fec2 100644
--- a/chrome/browser/resources/chromeos/login/screen_account_picker.js
+++ b/chrome/browser/resources/chromeos/login/screen_account_picker.js
@@ -23,6 +23,9 @@ login.createScreen('AccountPickerScreen', 'account-picker', function() {
   return {
     EXTERNAL_API: [
       'loadUsers',
+      'runAppForTesting',
+      'setApps',
+      'showAppError',
       'updateUserImage',
       'forceOnlineSignin',
       'setCapsLockState',
@@ -182,6 +185,39 @@ login.createScreen('AccountPickerScreen', 'account-picker', function() {
     },
 
     /**
+     * Runs app with a given id from the list of loaded apps.
+     * @param {!string} app_id of an app to run.
+     * @param {boolean=} opt_diagnostic_mode Whether to run the app in
+     *     diagnostic mode.  Default is false.
+     */
+    runAppForTesting: function(app_id, opt_diagnostic_mode) {
+      $('pod-row').findAndRunAppForTesting(app_id, opt_diagnostic_mode);
+    },
+
+    /**
+     * Adds given apps to the pod row.
+     * @param {array} apps Array of apps.
+     */
+    setApps: function(apps) {
+      $('pod-row').setApps(apps);
+    },
+
+    /**
+     * Shows the given kiosk app error message.
+     * @param {!string} message Error message to show.
+     */
+    showAppError: function(message) {
+      // TODO(nkostylev): Figure out a way to show kiosk app launch error
+      // pointing to the kiosk app pod.
+      /** @const */ var BUBBLE_PADDING = 12;
+      $('bubble').showTextForElement($('pod-row'),
+                                     message,
+                                     cr.ui.Bubble.Attachment.BOTTOM,
+                                     $('pod-row').offsetWidth / 2,
+                                     BUBBLE_PADDING);
+    },
+
+    /**
      * Updates current image of a user.
      * @param {string} username User for which to update the image.
      */