Move 'dir' attribute from HTMLDocument to Document.

Source/core/dom/Document.idl

 /*
  * Copyright (C) 2006, 2007, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006, 2007 Samuel Weinig <sam@webkit.org>
  *
  * 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 87 matching lines @@
                                    [Default=Undefined] optional boolean userInterface,
                                    [TreatNullAs=NullString, TreatUndefinedAs=NullString,Default=Undefined] optional DOMString value);
 
     boolean            queryCommandEnabled([Default=Undefined] optional DOMString command);
     boolean            queryCommandIndeterm([Default=Undefined] optional DOMString command);
     boolean            queryCommandState([Default=Undefined] optional DOMString command);
     boolean            queryCommandSupported([Default=Undefined] optional DOMString command);
     DOMString          queryCommandValue([Default=Undefined] optional DOMString command);
 
     // Moved down from HTMLDocument
-
+             [TreatNullAs=NullString, CustomElementCallbacks] attribute DOMString dir;
              [TreatNullAs=NullString, CustomElementCallbacks] attribute DOMString title;
     readonly attribute DOMString referrer;
              [TreatNullAs=NullString, RaisesException=Setter] attribute DOMString domain;
     readonly attribute DOMString URL;
 
              [TreatNullAs=NullString, RaisesException] attribute DOMString cookie;
 
              [RaisesException=Setter, CustomElementCallbacks, PerWorldBindings] attribute HTMLElement body;
 
     readonly attribute HTMLHeadElement head;
@@ skipping 92 matching lines @@
     // document in the console. It's possible http://crbug.com/43394 will resolve this.
     [MeasureAs=PrefixedPageVisibility, ImplementedAs=visibilityState] readonly attribute DOMString webkitVisibilityState;
     [MeasureAs=PrefixedPageVisibility, ImplementedAs=hidden] readonly attribute boolean webkitHidden;
 
     readonly attribute HTMLScriptElement currentScript;
 };
 
 Document implements GlobalEventHandlers;
 Document implements ParentNode;