Fix for http://code.google.com/p/chromium/issues/detail?id=5409....

webkit/port/bindings/v8/v8_helpers.cpp

Index: webkit/port/bindings/v8/v8_helpers.cpp
===================================================================
--- webkit/port/bindings/v8/v8_helpers.cpp	(revision 6781)
+++ webkit/port/bindings/v8/v8_helpers.cpp	(working copy)
@@ -38,13 +38,10 @@
 
 #include "DOMWindow.h"
 
-void WrapNPObject(v8::Handle<v8::Object> obj, NPObject* npobj) {
-  ASSERT(obj->InternalFieldCount() >= 3);
+using WebCore::V8Custom;
 
+void WrapNPObject(v8::Handle<v8::Object> obj, NPObject* npobj) {
   WebCore::V8Proxy::SetDOMWrapper(obj, WebCore::V8ClassIndex::NPOBJECT, npobj);
-
-  // Create a JS object as a hash map for functions
-  obj->SetInternalField(2, v8::Object::New());
 }
 
 v8::Local<v8::Context> GetV8Context(NPP npp, NPObject* npobj) {