DevTools: DataGrid: turn "element" getter to function.

Source/devtools/front_end/network/NetworkPanel.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2008, 2009 Anthony Ricaud <rik@webkit.org>
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 1509 matching lines @@
         if (node) {
             this._dataGrid.element.focus();
             node.reveal();
             this._highlightNode(node);
         }
     },
 
     _removeAllNodeHighlights: function()
     {
         if (this._highlightedNode) {
-            this._highlightedNode.element.classList.remove("highlighted-row");
+            this._highlightedNode.element().classList.remove("highlighted-row");
             delete this._highlightedNode;
         }
     },
 
     /**
      * @param {!WebInspector.NetworkDataGridNode} node
      */
     _highlightNode: function(node)
     {
-        WebInspector.runCSSAnimationOnce(node.element, "highlighted-row");
+        WebInspector.runCSSAnimationOnce(node.element(), "highlighted-row");
         this._highlightedNode = node;
     },
 
     /**
      * @param {!WebInspector.NetworkRequest} request
      * @return {string}
      */
     _generateCurlCommand: function(request)
     {
         var command = ["curl"];
@@ skipping 1499 matching lines @@
 WebInspector.NetworkDataGridNode.RequestPropertyComparator = function(propertyName, revert, a, b)
 {
     var aValue = a._request[propertyName];
     var bValue = b._request[propertyName];
     if (aValue > bValue)
         return revert ? -1 : 1;
     if (bValue > aValue)
         return revert ? 1 : -1;
     return a._request.indentityCompare(b._request);
 }