[DevTools] Replace usages of document with custom functions.

Source/devtools/front_end/audits/AuditResultView.js

 /*
  * 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 41 matching lines @@
 }
 
 /**
  * @constructor
  * @extends {WebInspector.SidebarPane}
  * @param {!WebInspector.AuditCategoryResult} categoryResult
  */
 WebInspector.AuditCategoryResultPane = function(categoryResult)
 {
     WebInspector.SidebarPane.call(this, categoryResult.title);
-    var treeOutlineElement = document.createElement("ol");
+    var treeOutlineElement = createElement("ol");
     this.bodyElement.classList.add("audit-result-tree");
     this.bodyElement.appendChild(treeOutlineElement);
 
     this._treeOutline = new TreeOutline(treeOutlineElement);
     this._treeOutline.expandTreeElementsWhenArrowing = true;
 
     function ruleSorter(a, b)
     {
         var result = WebInspector.AuditRule.SeverityOrder[a.severity || 0] - WebInspector.AuditRule.SeverityOrder[b.severity || 0];
         if (!result)
@@ skipping 20 matching lines @@
     _appendResult: function(parentTreeElement, result, severity)
     {
         var title = "";
 
         if (typeof result.value === "string") {
             title = result.value;
             if (result.violationCount)
                 title = String.sprintf("%s (%d)", title, result.violationCount);
         }
 
-        var titleFragment = document.createDocumentFragment();
+        var titleFragment = createDocumentFragment();
         if (severity) {
-            var severityElement = document.createElement("div");
+            var severityElement = createElement("div");
             severityElement.className = "severity-" + severity;
             titleFragment.appendChild(severityElement);
         }
         titleFragment.createTextChild(title);
 
         var treeElement = new TreeElement(titleFragment, null, !!result.children);
         parentTreeElement.appendChild(treeElement);
 
         if (result.className)
             treeElement.listItemElement.classList.add(result.className);
         if (typeof result.value !== "string")
             treeElement.listItemElement.appendChild(WebInspector.auditFormatters.apply(result.value));
 
         if (result.children) {
             for (var i = 0; i < result.children.length; ++i)
                 this._appendResult(treeElement, result.children[i]);
         }
         if (result.expanded) {
             treeElement.listItemElement.classList.remove("parent");
             treeElement.listItemElement.classList.add("parent-expanded");
             treeElement.expand();
         }
         return treeElement;
     },
 
     __proto__: WebInspector.SidebarPane.prototype
 }