Allow binding a getter+setter for window object property.

public/web/WebFrame.h

Index: public/web/WebFrame.h
diff --git a/public/web/WebFrame.h b/public/web/WebFrame.h
index 68b7440a22d8cc2725a52265b9c9e1d91e3c746d..60832a67391b6140773c0d8d08577d3588689033 100644
--- a/public/web/WebFrame.h
+++ b/public/web/WebFrame.h
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
+ * Copyright (C) 2013 Opera Software ASA. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -69,6 +70,7 @@ class WebURL;
 class WebURLLoader;
 class WebURLRequest;
 class WebView;
+class WebWindowPropertyCallback;
 struct WebConsoleMessage;
 struct WebFindOptions;
 struct WebFloatPoint;
@@ -220,6 +222,10 @@ public:
     virtual void bindToWindowObject(
         const WebString& name, NPObject*, void*) = 0;
 
+    // Binds the given object providing a getter and setter as a property
+    // of this frame's DOMWindow.
+    virtual void bindToWindowObject(const WebString& name, WebWindowPropertyCallback*) = 0;
+
     // Executes script in the context of the current page.
     virtual void executeScript(const WebScriptSource&) = 0;