Desktop user manager: Fix spacing between deletion warning text and button for supervised users.

ui/login/account_picker/user_pod_row.css

 /* 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.
  *
  * This is the stylesheet used by user pods row of account picker UI.
  */
 
 podrow {
   /* Temporarily disabled because animation interferes with updating screen's
    size. */
@@ skipping 354 matching lines @@
   background-color: #f3f3f3;
 }
 
 .action-box-remove-user-warning {
   border-top: 1px solid lightgray;
   font-size: 12px;
   line-height: 18px;
   padding: 20px;
 }
 
-.action-box-remove-user-warning-text {
+.action-box-remove-user-warning-text,
+.action-box-remove-supervised-user-warning-text {
   padding-bottom: 20px;
 }
 
 .action-box-remove-user-warning .remove-warning-button {
   width: 100%;
 }
 
 .user-type-bubble {
   background-color: white;
   border: 1px solid lightgray;
@@ skipping 190 matching lines @@
   top: 4px;
 }
 
 .pod.public-account.expanded.advanced .language-and-input-container {
   display: none;
 }
 
 .enter-button {
   font-size: 14px;
 }