[DevTools] Drop "ui" module from toolbox.

Source/devtools/front_end/ui/Popover.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 79 matching lines @@
 
         // This should not happen, but we hide previous popup to be on the safe side.
         if (WebInspector.Popover._popover)
             WebInspector.Popover._popover.hide();
         WebInspector.Popover._popover = this;
 
         var document = anchor instanceof Element ? anchor.ownerDocument : contentElement.ownerDocument;
         var window = document.defaultView;
 
         // Temporarily attach in order to measure preferred dimensions.
-        var preferredSize = view ? view.measurePreferredSize() : this._contentElement.measurePreferredSize();
+        var preferredSize = view ? view.measurePreferredSize() : WebInspector.measurePreferredSize(this._contentElement);
         preferredWidth = preferredWidth || preferredSize.width;
         preferredHeight = preferredHeight || preferredSize.height;
 
         window.addEventListener("resize", this._hideBound, false);
         document.body.appendChild(this._containerElement);
         WebInspector.View.prototype.show.call(this, this._containerElement);
 
         if (view)
             view.show(this._contentDiv);
         else
@@ skipping 291 matching lines @@
             this._resetHoverTimer();
         }
     }
 }
 
 /** @enum {string} */
 WebInspector.Popover.Orientation = {
     Top: "top",
     Bottom: "bottom"
 }