Add a UseCounter for Document.getOverrideStyle()

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 67 matching lines @@
     // DOM Level 2 Abstract Views (DocumentView interface)
 
     [ImplementedAs=domWindow] readonly attribute Window defaultView;
 
     // DOM Level 2 Style (DocumentStyle interface)
 
     readonly attribute StyleSheetList styleSheets;
 
     // DOM Level 2 Style (DocumentCSS interface)
 
-    CSSStyleDeclaration getOverrideStyle([Default=Undefined] optional Element element,
-                                         [Default=Undefined] optional DOMString pseudoElement);
+    [MeasureAs=DocumentGetOverrideStyle] CSSStyleDeclaration getOverrideStyle();
 
     // DOM 4
     readonly attribute DOMString contentType;
 
     // Common extensions
     [CustomElementCallbacks]
     boolean            execCommand([Default=Undefined] optional DOMString command,
                                    [Default=Undefined] optional boolean userInterface,
                                    [TreatUndefinedAs=NullString, Default=Undefined] optional DOMString? value);
 
@@ skipping 107 matching lines @@
     // TODO(davidben): This is a property so attaching a deprecation warning results in false positives when outputting
     // 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;