Revert of Refactoring activity logger.

Source/core/html/HTMLObjectElement.idl

 /*
  * Copyright (C) 2006, 2007, 2009, 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 10 matching lines @@
 [
     Custom=LegacyCallAsFunction,
 ] interface HTMLObjectElement : HTMLElement {
     [ImplementedAs=formOwner] readonly attribute HTMLFormElement form;
     [Reflect] attribute DOMString code;
     [Reflect] attribute DOMString align;
     [Reflect] attribute DOMString archive;
     [Reflect, TreatNullAs=NullString] attribute DOMString border;
     [Reflect, URL] attribute DOMString codeBase;
     [Reflect] attribute DOMString codeType;
-    [Reflect, URL] attribute DOMString data;
+    [Reflect, URL, LogActivity=SetterOnly] attribute DOMString data;
     [Reflect] attribute boolean declare;
     [Reflect] attribute DOMString height;
     [Reflect] attribute long hspace;
     [Reflect] attribute DOMString name;
     [Reflect] attribute DOMString standby;
     [Reflect] attribute DOMString type;
     [Reflect] attribute DOMString useMap;
     [Reflect] attribute long vspace;
     [Reflect] attribute DOMString width;
     readonly attribute boolean willValidate;
     readonly attribute ValidityState validity;
     readonly attribute DOMString validationMessage;
     boolean checkValidity();
     void setCustomValidity([TreatNullAs=NullString, TreatUndefinedAs=NullString] DOMString error);
 
     // Introduced in DOM Level 2:
     [CheckSecurity=Node] readonly attribute Document contentDocument;
     [Custom, NotEnumerable] getter boolean (unsigned long index);
     [Custom] setter boolean (unsigned long index, Node value);
     [Custom, NotEnumerable] getter Node (DOMString name);
     [Custom] setter Node (DOMString name, Node value);
 
     [CheckSecurity=Node, RaisesException] Document getSVGDocument();
 
     [Reflect, RuntimeEnabled=SubresourceIntegrity] attribute DOMString integrity;
 };