Remove Attr.isId and Attr.ownerElement.

Source/core/dom/Attr.idl

 /*
  * Copyright (C) 2006, 2007, 2008, 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 10 matching lines @@
 interface Attr : Node {
 
     // DOM Level 1
 
     [TreatReturnedNullStringAs=Null] readonly attribute DOMString name;
 
     [DeprecateAs=AttributeSpecified] readonly attribute boolean specified;
 
     [TreatReturnedNullStringAs=Null, TreatNullAs=NullString, RaisesException=Setter, CustomElementCallbacks] attribute DOMString value;
 
-    // DOM Level 2
-
-    [MeasureAs=AttributeOwnerElement] readonly attribute Element ownerElement;
-
-    // DOM Level 3
-
-    [MeasureAs=AttributeIsId] readonly attribute boolean isId;
-
     // DOM 4
 
     [TreatReturnedNullStringAs=Null, TreatNullAs=NullString, PerWorldBindings, RaisesException=Setter] attribute DOMString prefix;
     [TreatReturnedNullStringAs=Null, PerWorldBindings] readonly attribute DOMString namespaceURI;
     [TreatReturnedNullStringAs=Null, PerWorldBindings] readonly attribute DOMString localName;
 };