history: don't drop focus on the floor when removing a bookmark.

chrome/browser/resources/history/history.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. */
 
 html[dir='rtl'] body.uber-frame > .page {
   -webkit-margin-end: 0;
 }
 
 body.uber-frame > .page.big-topbar-page {
   padding-top: 78px;
@@ skipping 476 matching lines @@
 
 html .expand .site-domain-arrow {
   -webkit-transform: rotate(90deg);
 }
 
 .entry .bookmark-section {
   -webkit-margin-end: 3px;
   -webkit-margin-start: 8px;
   background:
       url(../../../../ui/webui/resources/images/star_small.png) no-repeat;
+  border: none;
   display: inline-block;
   height: 11px;
   min-width: 15px;
   visibility: hidden;
 }
 
 .entry .starred {
   visibility: visible;
 }
 
@@ skipping 103 matching lines @@
   background-image: url(../../../../ui/webui/resources/images/phone_small.png);
   background-position: 14px center;
   padding-left: 43px;
 }
 
 #action-menu[data-devicetype='tablet']::before {
   background-image: url(../../../../ui/webui/resources/images/tablet_small.png);
   background-position: 17px center;
   padding-left: 49px;
 }