[ChromeOS] Fix the wrong language settings page size.

chrome/browser/resources/options/chromeos/bluetooth.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. */
 
-.overlay {
-  padding: 0;
-}
-
-.overlay .page {
+#bluetooth-pairing {
   max-width: 480px;
   width: 100%;
 }
 
-.overlay .page h1 {
+#bluetooth-pairing h1 {
   border-bottom: 1px solid #c0c0c0;
   font-size: 15px;
 }
 
-.overlay .page > .close-button {
+#bluetooth-pairing > .close-button {
   padding: 8px 16px;
 }
 
-.overlay .page .button-strip button {
+#bluetooth-pairing .button-strip button {
   background-color: rgb(66, 133, 244);
   background-image: none;
   border: none;
   color: white;
   font-size: 14px;
   padding: 8px 20px;
   text-shadow: none;
 }
 
 .bluetooth-device-list {
@@ skipping 149 matching lines @@
   border: 2px solid rgb(77, 144, 254);
   box-shadow: none;
   color: #fff;
 }
 
 .bluetooth-keyboard-button.key-untyped {
   border: 1px solid #d4d4d4;
   box-shadow: 0 0 0 1px #888;
   color: #666;
 }