history: don't flex device names, takes up too much space.

chrome/browser/resources/history/other_devices.css

 /* Copyright (c) 2013 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. */
 
 .other-devices {
   width: 718px;  /* Same as history section max-width */
 }
 
 .device-row:not(:first-of-type) {
   margin-top: 20px;
 }
 
 .device {
   -webkit-margin-end: 10px;
   display: inline-block;
   vertical-align: top;
   width: 229px;
 }
 
 .device h3 {
   align-items: center;
   display: flex;
   line-height: 2em;
   margin-bottom: 0;
   margin-top: 8px;
 }
 
-.device-name {
-  flex: 1;
-}
-
-.device button {
-  flex: none;
-}
-
 .device-timestamp {
   color: rgb(151, 156, 160);
   font-size: 12px;
   line-height: 1.2em;
 }
 
 .device-name,
 .device-timestamp {
   overflow: hidden;
   text-overflow: ellipsis;
@@ skipping 39 matching lines @@
 .device-show-more-tabs,
 .device-show-more-tabs:active,
 .device-show-more-tabs:visited,
 .device-show-more-tabs:link {
   color: rgb(151, 156, 160);
 }
 
 .other-devices-bottom {
   clear: both;
 }