[DevTools] Make resource tree model optional

third_party/WebKit/Source/devtools/front_end/elements/ElementsSidebarPane.js

 // Copyright (c) 2014 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.ElementsSidebarPane = function()
 {
     WebInspector.VBox.call(this);
     this.element.classList.add("flex-none");
     this._computedStyleModel = new WebInspector.ComputedStyleModel();
     this._computedStyleModel.addEventListener(WebInspector.ComputedStyleModel.Events.ComputedStyleChanged, this.onCSSModelChanged, this);
 
     this._updateThrottler = new WebInspector.Throttler(100);
     this._updateWhenVisible = false;
 }
 
 WebInspector.ElementsSidebarPane.prototype = {
+

[dgozman, 2016/08/19 20:23:37]

stray blank line

[eostroukhov, 2016/08/20 01:22:30]

Done.

     /**
      * @return {?WebInspector.DOMNode}
      */
     node: function()
     {
         return this._computedStyleModel.node();
     },
 
     /**
      * @return {?WebInspector.CSSModel}
@@ skipping 36 matching lines @@
             this.update();
     },
 
     /**
      * @param {!WebInspector.Event} event
      */
     onCSSModelChanged: function(event) { },
 
     __proto__: WebInspector.VBox.prototype
 }