[DevTools] Drop "ui" module from toolbox.

Source/devtools/front_end/host/DOMExtension.js

 /*
  * Copyright (C) 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2012 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 259 matching lines @@
  * @return {!Constraints}
  */
 Constraints.prototype.addHeight = function(value)
 {
     if (typeof value === "number")
         return new Constraints(this.minimum.addHeight(value), this.preferred.addHeight(value));
     return new Constraints(this.minimum.addHeight(value.minimum), this.preferred.addHeight(value.preferred));
 }
 
 /**
- * @param {?Element=} containerElement
- * @return {!Size}
- */
-Element.prototype.measurePreferredSize = function(containerElement)
-{
-    containerElement = containerElement || this.ownerDocument.body;
-    containerElement.appendChild(this);
-    var fakingComponentRoot = WebInspector.installComponentRootStyles(this);
-    this.positionAt(0, 0);
-    var result = new Size(this.offsetWidth, this.offsetHeight);
-    this.positionAt(undefined, undefined);
-    this.remove();
-    if (fakingComponentRoot)
-        WebInspector.uninstallComponentRootStyles(this);
-    return result;
-}
-
-/**
  * @param {!Event} event
  * @return {boolean}
  */
 Element.prototype.containsEventPoint = function(event)
 {
     var box = this.getBoundingClientRect();
     return box.left < event.x  && event.x < box.right &&
            box.top < event.y && event.y < box.bottom;
 }
 
@@ skipping 554 matching lines @@
  */
 function isEnterKey(event) {
     // Check if in IME.
     return event.keyCode !== 229 && event.keyIdentifier === "Enter";
 }
 
 function consumeEvent(e)
 {
     e.consume();
 }