DevTools: Replace Apple styled spinner icon with Chromium one.

Source/devtools/front_end/SidebarTreeElement.js

 /*
  * Copyright (C) 2008 Apple 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 35 matching lines @@
         return this._smallChildren;
     },
 
     set smallChildren(x)
     {
         if (this._smallChildren === x)
             return;
 
         this._smallChildren = x;
 
-        if (this._smallChildren)
-            this._childrenListNode.classList.add("small");
-        else
-            this._childrenListNode.classList.remove("small");
+        this._childrenListNode.classList.toggle("small", this._smallChildren);
     },
 
     onattach: function()
     {
         this._listItemNode.classList.add("sidebar-tree-section");
     },
 
     onreveal: function()
     {
         if (this.listItemElement)
@@ skipping 14 matching lines @@
  */
 WebInspector.SidebarTreeElement = function(className, title, subtitle, representedObject, hasChildren)
 {
     TreeElement.call(this, "", representedObject, hasChildren);
 
     if (hasChildren) {
         this.disclosureButton = document.createElement("button");
         this.disclosureButton.className = "disclosure-button";
     }
 
-    this.iconElement = document.createElementWithClass("img", "icon");
+    this.iconElement = document.createElementWithClass("div", "icon");
     this.statusElement = document.createElementWithClass("div", "status");
     this.titlesElement = document.createElementWithClass("div", "titles");
 
     this.titleContainer = this.titlesElement.createChild("span", "title-container");
     this.titleElement = this.titleContainer.createChild("span", "title");
 
     this.subtitleElement = this.titlesElement.createChild("span", "subtitle");
 
     this.className = className;
     this.mainTitle = title;
     this.subtitle = subtitle;
 }
 
 WebInspector.SidebarTreeElement.prototype = {
     get small()
     {
         return this._small;
     },
 
     set small(x)
     {
         this._small = x;
-
-        if (this._listItemNode) {
-            if (this._small)
-                this._listItemNode.classList.add("small");
-            else
-                this._listItemNode.classList.remove("small");
-        }
+        if (this._listItemNode)
+            this._listItemNode.classList.toggle("small", this._small);
     },
 
     get mainTitle()
     {
         return this._mainTitle;
     },
 
     set mainTitle(x)
     {
         this._mainTitle = x;
         this.refreshTitles();
     },
 
     get subtitle()
     {
         return this._subtitle;
     },
 
     set subtitle(x)
     {
         this._subtitle = x;
         this.refreshTitles();
     },
 
     set wait(x)
     {
-        if (x)
-            this._listItemNode.classList.add("wait");
-        else
-            this._listItemNode.classList.remove("wait");
+        this._listItemNode.classList.toggle("wait", x);
     },
 
     refreshTitles: function()
     {
         var mainTitle = this.mainTitle;
         if (this.titleElement.textContent !== mainTitle)
             this.titleElement.textContent = mainTitle;
 
         var subtitle = this.subtitle;
         if (subtitle) {
@@ skipping 33 matching lines @@
     },
 
     onreveal: function()
     {
         if (this._listItemNode)
             this._listItemNode.scrollIntoViewIfNeeded(false);
     },
 
     __proto__: TreeElement.prototype
 }