Fix alignment of select and button controls in chrome://setttings.

chrome/browser/resources/shared/css/chrome_shared.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 file holds CSS that should be shared, in theory, by all user-visible
  * chrome:// pages. */
 
 @import url("chrome://resources/css/widgets.css");
 <if expr="pp_ifdef('chromeos')">
   @import url("chrome://resources/css/chromeos/ui_account_tweaks.css");
@@ skipping 118 matching lines @@
   .radio label {
     padding-bottom: 7px;
     padding-top: 7px;
   }
 
   li > button.link-button {
     padding-bottom: 8px;
     padding-top: 8px;
   }
 
-  button:not(.custom-appearance):not(.link-button),
-  input[type=button]:not(.custom-appearance),
-  input[type=submit]:not(.custom-appearance),
-  select {
+  :-webkit-any(button,
+               input[type='button'],
+               input[type='submit'],
+               select):not(.custom-appearance):not(.link-button) {
     margin-bottom: 6px;
     margin-top: 6px;
-    padding-bottom: 7px;
-    padding-top: 6px;
   }
 
-  list button:not(.custom-appearance):not(.link-button),
-  list input[type=button]:not(.custom-appearance),
-  list input[type=submit]:not(.custom-appearance),
-  list select {
+  list :-webkit-any(
+      button,
+      input[type='button'],
+      input[type='submit'],
+      select):not(.custom-appearance):not(.link-button) {
     margin: 0;
     padding-bottom: 0;
     padding-top: 3px;
   }
 }