[DevTools] Simplify getting back to default network order.

Source/devtools/front_end/network/NetworkDataGridNode.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 57 matching lines @@
     nodeSelfHeight: function()
     {
         return this._parentView.rowHeight();
     },
 
     /**
      * @override
      */
     createCells: function()
     {
-        this._showTiming = !WebInspector.settings.networkColorCodeResourceTypes.get() && !this._parentView.calculator().startAtZero;
+        this._showTiming = !WebInspector.settings.networkColorCodeResourceTypes.get();
         this._nameCell = null;
         this._timelineCell = null;
         this._initiatorCell = null;
 
         this._element.classList.toggle("network-error-row", this._isFailed());
         this._element.classList.toggle("network-navigation-row", this._isNavigationRequest);
         WebInspector.SortableDataGridNode.prototype.createCells.call(this);
 
         this._updateGraph();
     },
@@ skipping 564 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);
 }