[WebUI] Fix all CSS nits in chrome/browser/resources/chromeos.

chrome/browser/resources/chromeos/login/network_dropdown.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.
  *
  * This is the stylesheet used by the network drop-down control.
  */
 
 .dropdown-title {
   -webkit-appearance: none;
   -webkit-box-align: start;
   -webkit-padding-end: 20px;
   -webkit-padding-start: 1px;
   -webkit-user-select: none;
   background-image: url('../../shared/images/select.png'),
       -webkit-gradient(linear, left top, left bottom,
                        color-stop(0, rgb(237, 237, 237)),
                        color-stop(0.38, rgb(237, 237, 237)),
                        color-stop(1, rgb(222, 222, 222)));
   background-position: center right;
   background-repeat: no-repeat;
+  border: 1px solid rgba(0, 0, 0, 0.25);
   border-radius: 2px;
-  border: 1px solid rgba(0, 0, 0, 0.25);
   box-shadow: 0 1px 0 rgba(0, 0, 0, 0.08),
       inset 0 1px 2px rgba(255, 255, 255, 0.75);
   color: #444;
   display: -webkit-box;
   font-size: inherit;
   height: 22px;
   margin: 0;
   overflow: hidden;
+  padding-bottom: 2px;
   padding-top: 2px;
-  padding-bottom: 2px;
-  text-overflow: ellipsis;
   text-align: left;
   text-indent: 4px;
+  text-overflow: ellipsis;
   text-shadow: 0 1px 0 rgb(240, 240, 240);
   white-space: nowrap;
   z-index: 10;
 }
 
 .dropdown-title:enabled:hover {
   background-image: url('../../shared/images/select.png'),
       -webkit-gradient(linear, left top, left bottom,
                        color-stop(0, rgb(237, 237, 237)),
                        color-stop(0.38, rgb(237, 237, 237)),
@@ skipping 26 matching lines @@
 
 .dropdown-title div {
   -webkit-box-flex: 1;
   margin-top: 1px;
   overflow: hidden;
   text-overflow: ellipsis;
 }
 
 .dropdown-container {
   background: #f7f7f7;
-  border: 1px solid #7c91bf;
+  border: 1px solid rgb(124, 145, 191);
   max-height: 330px;
   overflow-x: hidden;
   overflow-y: auto;
   padding-bottom: 2px;
   padding-top: 2px;
   position: absolute;
   top: 100%;
   width: 99.5%;
   z-index: 10;
 }
 
 .dropdown-item-container {
   -webkit-padding-start: 5px;
   display: -webkit-box;
   height: 24px;
 }
 
 .dropdown-item-container.hover {
-  background: #dce4fa;
+  background: rgb(220, 228, 250);
 }
 
 .dropdown-image {
   width: 24px;
 }
 
 .dropdown-item {
   -webkit-box-flex: 1;
+  color: #555;
   cursor: default;
-  color: #555;
   overflow: hidden;
   padding-top: 4px;
   text-overflow: ellipsis;
   white-space: nowrap;
 }
 
 .dropdown-divider {
   height: 3px;
 }
 
 .dropdown-divider hr {
+  -webkit-margin-after: 2px;
   -webkit-margin-before: 2px;
-  -webkit-margin-after: 2px;
 }
 
 .dropdown-item.disabled-item {
   color: graytext;
 }
 
 .dropdown-overlay {
   bottom: 0;
   left: 0;
   position: fixed;
   right: 0;
   top: 0;
   z-index: 5;
 }