[WebUI] Fix rest of CSS style nits in misc. dirs so I can turn on CSS checker.

chrome/browser/resources/omnibox/omnibox.css

 /* Copyright (c) 2012 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.
  */
 
 .autocomplete-results-table {
+  border: 1px solid grey;
   margin-bottom: 1.5em;
-  border: 1px solid grey;
 }
 
 .autocomplete-results-table th {
   border: 1px solid grey;
 }
 
 .autocomplete-results-table td {
   border: 1px solid grey;
 }
 
 .check-mark {
   color: green;
 }
 
 .x-mark {
   color: red;
 }
 
 p {
   margin: 0;
 }
 
 .input-section {
   margin-bottom: 1em;
 }