[DevTools] Simplify getting back to default network order.

Source/devtools/front_end/network/NetworkOverview.js

 // Copyright 2015 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.
 
 /**
  * @constructor
  * @extends {WebInspector.VBox}
  */
 WebInspector.NetworkOverview = function()
 {
     WebInspector.VBox.call(this);
     this.element.classList.add("network-overview");
 
     /** @type {!WebInspector.OverviewGrid} */
     this._overviewGrid = new WebInspector.OverviewGrid("network");
     /** @type {!Element} */
     this._overviewContainer = this._overviewGrid.element.createChild("div", "network-overview-canvas-container");
     this._overviewCanvas = this._overviewContainer.createChild("canvas", "network-overview-canvas");
-    /** @type {!WebInspector.NetworkTransferTimeCalculator} */
-    this._calculator = new WebInspector.NetworkTransferTimeCalculator();
+    /** @type {!WebInspector.NetworkTimeCalculator} */
+    this._calculator = new WebInspector.NetworkTimeCalculator();
     /** @type {number} */
     this._numBands = 1;
     /** @type {number} */
     this._windowStart = 0;
     /** @type {number} */
     this._windowEnd = 0;
     /** @type {boolean} */
     this._restoringWindow = false;
     /** @type {boolean} */
     this._updateScheduled = false;
@@ skipping 306 matching lines @@
     {
         this._canvasWidth = width;
         this._canvasHeight = height;
         this._overviewCanvas.width = width * window.devicePixelRatio;
         this._overviewCanvas.height = height * window.devicePixelRatio;
         this._overviewGrid.updateDividers(this._calculator);
     },
 
     __proto__: WebInspector.VBox.prototype
 }