Pass isolate to v8::Undefined() function

Source/web/WebBindings.cpp

 /*
  * 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 372 matching lines @@
     WebCore::convertV8ObjectToNPVariant(object, root, result);
 }
 
 v8::Handle<v8::Value> WebBindings::toV8Value(const NPVariant* variant)
 {
     v8::Isolate* isolate = v8::Isolate::GetCurrent();
     if (variant->type == NPVariantType_Object) {
         NPObject* object = NPVARIANT_TO_OBJECT(*variant);
         V8NPObject* v8Object = npObjectToV8NPObject(object);
         if (!v8Object)
-            return v8::Undefined();
+            return v8::Undefined(isolate);
         return convertNPVariantToV8Object(variant, v8Object->rootObject->frame()->script()->windowScriptNPObject(), isolate);
     }
     // Safe to pass 0 since we have checked the script object class to make sure the
     // argument is a primitive v8 type.
     return convertNPVariantToV8Object(variant, 0, isolate);
 }
 
 } // namespace WebKit