WebUI TaskManager: Column Customization

chrome/browser/resources/shared/js/cr/ui/table.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 control.
  */
 
 cr.define('cr.ui', function() {
   const ListSelectionModel = cr.ui.ListSelectionModel;
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     },
     set selectionModel(selectionModel) {
       if (this.list_.selectionModel != selectionModel) {
         if (this.dataModel)
           selectionModel.adjustLength(this.dataModel.length);
         this.list_.selectionModel = selectionModel;
       }
     },
 
     /**
+     * The table column model.
+     *
+     * @type {cr.ui.table.TableColumnModel}
+     */
+    get header() {
+      return this.header_;
+    },
+
+    /**
      * Sets width of the column at the given index.
      *
      * @param {number} index The index of the column.
      * @param {number} Column width.
      */
     setColumnWidth: function(index, width) {
       this.columnWidths_[index] = width;
     },
 
     /**
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    * because table contents can contain controls that can be focused, and for
    * some purposes (e.g., styling), the table can still be conceptually focused
    * at that point even though it doesn't actually have the page focus.
    */
   cr.defineProperty(Table, 'hasElementFocus', cr.PropertyKind.BOOL_ATTR);
 
   return {
     Table: Table
   };
 });