Add use counters for a number of extensions and non-standard APIs

Source/core/html/HTMLFrameElement.idl

 /*
  * Copyright (C) 2006, 2007, 2010 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 19 matching lines @@
     [Reflect, URL, PerWorldBindings, LogActivity=SetterOnly] attribute DOMString src;
 
     // Introduced in DOM Level 2:
     [CheckSecurity=Node] readonly attribute Document contentDocument;
 
     // Extensions
     readonly attribute Window contentWindow;
 
     [CheckSecurity=Node, RaisesException] Document getSVGDocument();
 
-    readonly attribute long width;
-    readonly attribute long height;
+    [MeasureAs=HTMLFrameElementWidth] readonly attribute long width;
+    [MeasureAs=HTMLFrameElementHeight] readonly attribute long height;
 };