Support for selective DOM activity logging, based on IDL attributes.

Source/core/page/Location.idl

 /*
  * Copyright (C) 2008 Apple Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer. 
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 16 matching lines @@
  */
 
 [
     CheckSecurity,
     CustomNamedSetter,
     CustomDeleteProperty,
     CustomEnumerateProperty,
 ] interface Location {
     [DoNotCheckSecurityOnSetter, CustomSetter, Unforgeable] attribute DOMString href;
 
-    [Custom, Unforgeable] void assign([Default=Undefined] optional DOMString url);
-    [Custom, Unforgeable] void replace([Default=Undefined] optional DOMString url);
+    [Custom, Unforgeable, PerWorldBindings, ActivityLog=AccessForIsolatedWorlds] void assign([Default=Undefined] optional DOMString url);
+    [Custom, Unforgeable, PerWorldBindings, ActivityLog=AccessForIsolatedWorlds] void replace([Default=Undefined] optional DOMString url);
     [Custom, Unforgeable] void reload();
 
     // URI decomposition attributes
     [CustomSetter] attribute DOMString protocol;
     [CustomSetter] attribute DOMString host;
     [CustomSetter] attribute DOMString hostname;
     [CustomSetter] attribute DOMString port;
     [CustomSetter] attribute DOMString pathname;
     [CustomSetter] attribute DOMString search;
     [CustomSetter] attribute DOMString hash;
 
     readonly attribute DOMString origin;
 
     readonly attribute DOMStringList ancestorOrigins;
 
     [NotEnumerable, Custom, Unforgeable, ReadOnly, ImplementedAs=toStringFunction] DOMString toString();
     [NotEnumerable, Custom, Unforgeable, ReadOnly] any valueOf();
 };