Merge the Sky Engine changes from the SkyDart branch

sky/engine/core/dom/Element.idl

 /*
  * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 12 matching lines @@
 ] interface Element : Node {
     readonly attribute DOMString? tagName;
 
     DOMString? getAttribute(DOMString name);
     [RaisesException, CustomElementCallbacks] void setAttribute(DOMString name, DOMString value);
     [CustomElementCallbacks] void removeAttribute(DOMString name);
     boolean hasAttribute(DOMString name);
     boolean hasAttributes();
     sequence<Attr> getAttributes();
 
-    [PerWorldBindings] readonly attribute CSSStyleDeclaration style;
+    readonly attribute CSSStyleDeclaration style;
 
     [Reflect] attribute DOMString id;
     readonly attribute DOMString? localName;
 
     [RaisesException] boolean matches(DOMString selectors);
 
     readonly attribute long offsetLeft;
     readonly attribute long offsetTop;
     readonly attribute long offsetWidth;
     readonly attribute long offsetHeight;
     readonly attribute Element offsetParent;
     readonly attribute long clientLeft;
     readonly attribute long clientTop;
     readonly attribute long clientWidth;
     readonly attribute long clientHeight;
 
     void focus();
     void blur();
 
-    [PerWorldBindings] readonly attribute DOMTokenList classList;
+    readonly attribute DOMTokenList classList;
 
     [RaisesException] ShadowRoot ensureShadowRoot();
-    [PerWorldBindings] readonly attribute ShadowRoot shadowRoot;
+    readonly attribute ShadowRoot shadowRoot;
     NodeList getDestinationInsertionPoints();
 
     // CSSOM View Module API
     ClientRectList getClientRects();
     ClientRect getBoundingClientRect();
 
     [Reflect] attribute DOMString lang;
     attribute DOMString dir;
 
     [CustomElementCallbacks] attribute long tabIndex;
 
     [CustomElementCallbacks, RaisesException=Setter] attribute DOMString contentEditable;
     readonly attribute boolean isContentEditable;
 
     attribute boolean spellcheck;
 };
 
 Element implements ParentNode;
 Element implements ChildNode;