[DevTools] Replace usages of document with custom functions.

Source/devtools/front_end/components/PropertiesSection.js

 /*
  * Copyright (C) 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 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
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 20 matching lines @@
  * @constructor
  * @extends {WebInspector.Section}
  * @param {string|!Element} title
  * @param {string=} subtitle
  */
 WebInspector.PropertiesSection = function(title, subtitle)
 {
     WebInspector.Section.call(this, title, subtitle);
 
     this.headerElement.classList.add("monospace");
-    this.propertiesElement = document.createElement("ol");
+    this.propertiesElement = createElement("ol");
     this.propertiesElement.className = "properties properties-tree monospace";
     this.propertiesTreeOutline = new TreeOutline(this.propertiesElement, true);
     this.propertiesTreeOutline.setFocusable(false);
     this.propertiesTreeOutline.section = this;
 
     this.element.appendChild(this.propertiesElement);
 }
 
 WebInspector.PropertiesSection.prototype = {
     __proto__: WebInspector.Section.prototype
 }