History: Fix position of lock/unlock button

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;
 }
 
 #top-container {
   margin-top: 16px;
   overflow: auto;
 }
 
 #editing-controls,
 #loading-spinner {
   white-space: nowrap;
 }
 
 #lock-unlock-button:not(.profile-is-managed),
 .managed-user-locked #allow-selected,
 .managed-user-locked #block-selected {
   display: none;
 }
 
-#lock-unlock-button {
-  float: right;
-}
-
-html[dir=rtl] #lock-unlock-button {
-  float: left;
-}
-
 #search-button {
   margin: 0;
 }
 
 #spinner {
   position: relative;
   top: 3px;
 }
 
 #notification-bar {
@@ skipping 56 matching lines @@
 
 #range-next:disabled img,
 #range-previous:disabled img {
   opacity: 0.4;
 }
 
 #display-filter-controls {
   float: right;
 }
 
-#display-filter-controls label {
-  -webkit-margin-start: 6px;
+#display-filter-controls > * {
+  -webkit-margin-start: 8px;
 }
 
-#display-filter-controls label:not(:last-child) {
+#display-filter-controls > *:not(:last-child) {
   -webkit-border-end: 1px solid rgb(151, 156, 160);
   -webkit-margin-start: 0;
   padding: 0 6px 0 6px;
 }
 
 #results-display {
   margin: 16px 0 0 0;
 }
 
 .edit-button {
@@ skipping 362 matching lines @@
 }
 
 /* Clear the float to ensure that #results-pagination encloses its children. */
 #results-pagination::after {
   clear: both;
   content: '';
   display: block;
   height: 0;
   visibility: hidden;
 }