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

chrome/browser/resources/policy.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. */
+
 body {
   color: black;
   cursor: default;
   font-family: Arial, sans-serif;
   font-size: 14px;
   margin: 0 10px;
   min-width: 47em;
 }
 
 button {
   font-size: 0.9em;
 }
 
 #header {
   border-bottom: 1px solid #000;
   padding-top: 20px;
 }
 
 #about-policy-title {
   -webkit-padding-end: 24px;
   -webkit-user-select: none;
-  border-bottom: 1px solid #c6c9ce;
-  color: #53637d;
+  border-bottom: 1px solid rgb(198, 201, 206);
+  color: rgb(83, 99, 125);
   cursor: pointer;
   font-size: 200%;
   font-weight: normal;
   margin: 0;
   padding-bottom: 14px;
   padding-top: 13px;
   text-shadow: white 0 1px 2px;
 }
 
 #main-content {
@@ skipping 89 matching lines @@
   table-layout: fixed;
   width: 100%;
 }
 
 #policy-table th td {
   border: 1px solid #fff;
   border-collapse: collapse;
 }
 
 #policy-table th {
-  background-color: #dadadd;
+  background-color: rgb(218, 218, 221);
   padding: 10px;
 }
 
 #policy-table td {
-  background-color: #eaeef3;
+  background-color: rgb(234, 238, 243);
   padding: 10px;
   position: relative;
   vertical-align: top;
   width: 20%;
 }
 
 .text-collapsed {
   bottom: 0;
   left: 0;
   margin: 10px;
@@ skipping 21 matching lines @@
 }
 
 .text-expanded .text-value {
   white-space: pre-wrap;
 }
 
 .toggler {
   float: right;
   padding: 0 3px !important;
 }