Enable isolated worlds for content scripts....

webkit/api/public/WebFrame.h

 /*
  * Copyright (C) 2009 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 127 matching lines @@
         // Executes script in the context of the current page.
         virtual void executeScript(const WebScriptSource&) = 0;
 
         // Executes script in a new context associated with the frame. The
         // script gets its own global scope and its own prototypes for
         // intrinsic JS objects (String, Array, and so-on). It shares the
         // wrappers for all DOM nodes and DOM constructors.
         virtual void executeScriptInNewContext(const WebScriptSource* sources,
                                                unsigned numSources) = 0;
 
+        // Executes JavaScript in a new world associated with the web frame.
+        // The script gets its own global scope and its own prototypes for
+        // intrinsic JavaScript objects (String, Array, and so-on). It also
+        // gets its own wrappers for all DOM nodes and DOM constructors.
+        virtual void executeScriptInNewWorld(const WebScriptSource* sources,
+                                             unsigned numSources) = 0;
+
         // Logs to the console associated with this frame.
         virtual void addMessageToConsole(const WebConsoleMessage&) = 0;
 
 
         // Styling -------------------------------------------------------------
 
         // Insert the given text as a STYLE element at the beginning of the
         // document.
         virtual bool insertStyleText(const WebString&) = 0;
 
@@ skipping 93 matching lines @@
 
 
         // Find-in-page --------------------------------------------------------
 
         // FIXME
     };
 
 } // namespace WebKit
 
 #endif