Added "select all/none" checkbox.

chrome/browser/resources/shared/js/cr/ui/table/table_header.js

 // Copyright (c) 2011 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.
 
 /**
  * @fileoverview This implements a table header.
  */
 
 cr.define('cr.ui.table', function() {
   const TableSplitter = cr.ui.TableSplitter;
@@ skipping 106 matching lines @@
      * @param {number} index Column index.
      */
     createHeaderLabel_: function(index) {
       var cm = this.table_.columnModel;
       var dm = this.table_.dataModel;
 
       var labelDiv = this.ownerDocument.createElement('div');
       labelDiv.className = 'table-header-label';
 
       var span = this.ownerDocument.createElement('span');
-      span.textContent = cm.getName(index);
+      span.appendChild(cm.renderHeader(index, this.table_));
       var rtl = this.ownerDocument.defaultView.getComputedStyle(this).
           direction == 'rtl';
       if (rtl) {
         span.style.backgroundPosition = 'left';
         span.style.paddingRight= '0';
       } else {
         span.style.backgroundPosition = 'right';
         span.style.paddingLeft= '0';
       }
       if (dm) {
@@ skipping 22 matching lines @@
   /**
    * The table associated with the header.
    * @type {cr.ui.Table}
    */
   cr.defineProperty(TableHeader, 'table');
 
   return {
     TableHeader: TableHeader
   };
 });