MD Downloads: fix focus issue on downloads page by combining pause/play

chrome/browser/resources/md_downloads/item.css

 /* Copyright 2015 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. */
 
 :host {
   display: flex;
   flex-direction: column;
 }
 
 #date {
@@ skipping 95 matching lines @@
 #name,
 #file-link {
   font-weight: 500;
   word-break: break-all;
 }
 
 #name {
   -webkit-margin-end: 12px;  /* Only really affects #tag. */
 }
 
-#resume,
-.is-active :-webkit-any(#name, #file-link, #pause, #show) {
+#pause-or-resume,
+.is-active :-webkit-any(#name, #file-link, #show) {
   color: rgb(51, 103, 214);
 }
 
 #tag {
   color: #5a5a5a;
   font-weight: 500;
 }
 
 #url {
   color: inherit;
@@ skipping 75 matching lines @@
 }
 
 #incognito {
   bottom: 20px;
   content: -webkit-image-set(
       url(chrome://downloads/1x/incognito_marker.png) 1x,
       url(chrome://downloads/2x/incognito_marker.png) 2x);
   position: absolute;
   right: 10px;
 }