Revert of [DevTools] Extract platform module.

Source/devtools/front_end/toolbox_bootstrap/Toolbox.js

 // Copyright 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
+ * @suppressGlobalPropertiesCheck
+ */
+WebInspector.Toolbox = function()
+{
+    if (!window.opener)
+        return;
+
+    var host = /** @type {!WebInspector.ToolboxHost} */ (window.opener.WebInspector["app"]);
+    host.toolboxLoaded(document);
+}
+
 // FIXME: This stub is invoked from the backend and should be removed
 // once we migrate to the "pull" model for extensions retrieval.
-WebInspector = {};
-WebInspector.addExtensions = function() {};
-
-(function()
-{
+WebInspector.addExtensions = function() {}
 
 /**
  * @suppressGlobalPropertiesCheck
- */
-function toolboxLoaded()
-{
-    if (!window.opener)
-        return;
-    window.opener.WebInspector["app"]["toolboxLoaded"](document);
-}
-
-/**
- * @suppressGlobalPropertiesCheck
  */
 function windowLoaded()
 {
     window.removeEventListener("DOMContentLoaded", windowLoaded, false);
-    toolboxLoaded();
+    new WebInspector.Toolbox();
 }
 
 /**
  * @suppressGlobalPropertiesCheck
  */
 function initToolbox()
 {
     if (document.readyState === "complete")
-        toolboxLoaded();
+        new WebInspector.Toolbox();
     else
         window.addEventListener("DOMContentLoaded", windowLoaded, false);
 }
 initToolbox();
-
-})();