User Manager UI fixes

chrome/browser/resources/login/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 234 matching lines @@
 
 .action-box-area:focus,
 .action-box-area.hovered,
 .action-box-area.active {
   opacity: 1;
 }
 
 .action-box-button {
   background-color: transparent;
   background-image: url('chrome://theme/IDR_OOBE_ACTION_BOX_BUTTON_NORMAL');
-  border: 0 !important;
+  border: 0;
   height: 13px;
   margin: 5px;
   padding: 0;
   width: 13px;
 }
 
 .user-type-icon-area {
   background-color: white;
   border-radius: 2px;
   box-shadow: none;
@@ skipping 322 matching lines @@
 .pod.public-account.expanded .name,
 .pod.public-account.expanded .learn-more {
   display: none;
 }
 
 .pod.public-account.expanded .side-pane-divider,
 .pod.public-account.expanded .side-pane-container,
 .pod.public-account.animating .side-pane-container {
   visibility: inherit;
 }