Fixes weird pdf plugin scroll bug.

chrome/browser/resources/print_preview/search/destination_search.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. */
 
 #destination-search {
   z-index: 3;
 }
 
 #destination-search.transparent {
   opacity: 0;
+  overflow: hidden;
   pointer-events: none;
 }
 
 #destination-search .page {
   width: 640px;
 }
 
 #destination-search .user-info {
   -webkit-user-select: none;
   overflow: hidden;
@@ skipping 57 matching lines @@
   -webkit-margin-start: 12px;
   background-image: url(chrome://resources/images/x.png);
   background-position: -2px -1px;
   height: 18px;
   width: 18px;
 }
 
 #destination-search .cloudprint-promo .close-button:hover {
   background-image: url(chrome://resources/images/x-hover.png);
 }