print_preview: remove padding above button strip on destinations dialog.

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;
@@ skipping 46 matching lines @@
 #destination-search .lists {
   -webkit-box-flex: 1;
   overflow-y: auto;
 }
 
 #destination-search .lists > * {
   -webkit-user-select: none;
   padding: 0 14px 18px;
 }
 
+#destination-search .lists > :last-child {
+  padding-bottom: 0;
+}
+
 #destination-search .invitation-container {
   -webkit-animation: invitation-fadein 500ms;
   -webkit-box-align: center;
   -webkit-box-orient: vertical;
 }
 
 @-webkit-keyframes invitation-fadein {
   from {
     opacity: 0;
   }
@@ skipping 55 matching lines @@
   background-image: -webkit-image-set(
     url(chrome://theme/IDR_CLOSE_DIALOG_H) 1x,
     url(chrome://theme/IDR_CLOSE_DIALOG_H@2x) 2x);
 }
 
 #destination-search .cloudprint-promo .close-button:active {
   background-image: -webkit-image-set(
     url(chrome://theme/IDR_CLOSE_DIALOG_P) 1x,
     url(chrome://theme/IDR_CLOSE_DIALOG_P@2x) 2x);
 }