DevTools: NetworkPanel: fix - WS frames are not shown.

Source/devtools/front_end/network/ResourceWebSocketFrameView.js

 /*
  * Copyright (C) 2012 Research In Motion Limited. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
 /**
  * @constructor
  * @extends {WebInspector.VBox}
  * @param {!WebInspector.NetworkRequest} request
  */
 WebInspector.ResourceWebSocketFrameView = function(request)
 {
     WebInspector.VBox.call(this);
     this.registerRequiredCSS("webSocketFrameView.css");
     this.element.classList.add("websocket-frame-view");
     this._request = request;
-    this.element.removeChildren();
 
     var columns = [
         {id: "data", title: WebInspector.UIString("Data"), sortable: false, weight: 88, longText: true},
         {id: "length", title: WebInspector.UIString("Length"), sortable: false, align: WebInspector.DataGrid.Align.Right, weight: 5},
         {id: "time", title: WebInspector.UIString("Time"), weight: 7}
     ]
 
     this._dataGrid = new WebInspector.SortableDataGrid(columns, undefined, undefined, undefined, this._onContextMenu.bind(this));
     this._dataGrid.setCellClass("websocket-frame-view-td");
     var comparator = /** @type {!WebInspector.SortableDataGrid.NodeComparator} */ (WebInspector.ResourceWebSocketFrameNodeTimeComparator);
@@ skipping 110 matching lines @@
 
 /**
  * @param {!WebInspector.ResourceWebSocketFrameNode} a
  * @param {!WebInspector.ResourceWebSocketFrameNode} b
  * @return {number}
  */
 WebInspector.ResourceWebSocketFrameNodeTimeComparator = function(a, b)
 {
     return a._frame.time - b._frame.time;
 }