cros: Smart unlock set-up had space for icon while none is show.

ui/login/account_picker/user_pod_row.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 User pod row implementation.
  */
 
 cr.define('login', function() {
   /**
@@ skipping 356 matching lines @@
      * @param {!string} ariaLabel
      */
     setAriaLabel: function(ariaLabel) {
       this.iconElement.setAttribute('aria-label', ariaLabel);
     },
 
     /**
      * Shows the icon.
      */
     show: function() {
-      this.hidden = false;
+      // Show the icon if the current iconId is valid.
+      var validIcon = false;
+      UserPodCustomIcon.ICONS.forEach(function(icon) {
+        validIcon = validIcon || this.iconId_ == icon.id;
+      }, this);
+      this.hidden = validIcon ? false : true;
     },
 
     /**
      * Updates the icon tooltip. If {@code autoshow} parameter is set the
      * tooltip is immediatelly shown. If tooltip text is not set, the method
      * ensures the tooltip gets hidden. If tooltip is shown prior to this call,
      * it remains shown, but the tooltip text is updated.
      * @param {!{text: string, autoshow: boolean}} tooltip The tooltip
      *    parameters.
      */
@@ skipping 3337 matching lines @@
        if (pod && pod.multiProfilesPolicyApplied) {
          pod.userTypeBubbleElement.classList.remove('bubble-shown');
        }
      }
   };
 
   return {
     PodRow: PodRow
   };
 });