[DevTools] Drop "ui" module from toolbox.

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 delegate = /** @type {!WebInspector.ToolboxHost} */ (window.opener.WebInspector["app"]);
-
-    WebInspector.initializeUIUtils(window);
-    WebInspector.zoomManager = new WebInspector.ZoomManager(window, delegate.inspectorFrontendHost());
-    WebInspector.ContextMenu.installHandler(document);
-
-    var rootView = new WebInspector.RootView();
-    delegate.toolboxLoaded(rootView.element);
-    rootView.attachToBody();
+    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.addExtensions = function() {}
 
 /**
  * FIXME: Remove FIXME once http://crbug.com/425506 is fixed.
  * @suppressGlobalPropertiesCheck
  */
 function windowLoaded()
 {
     window.removeEventListener("DOMContentLoaded", windowLoaded, false);
     new WebInspector.Toolbox();
 }
 
 /**
  * FIXME: Remove FIXME once http://crbug.com/425506 is fixed.
  * @suppressGlobalPropertiesCheck
  */
 function initToolbox()
 {
     if (document.readyState === "complete")
         new WebInspector.Toolbox();
     else
         window.addEventListener("DOMContentLoaded", windowLoaded, false);
 }
 initToolbox();