Track NPObject ownership by the originating plugins' NPP identifier. [2/3] (Chrome)

webkit/plugins/ppapi/message_channel.cc

Index: webkit/plugins/ppapi/message_channel.cc
diff --git a/webkit/plugins/ppapi/message_channel.cc b/webkit/plugins/ppapi/message_channel.cc
index e0e0a390ce789c1212d8bcd2e0d85bf5969ac574..bbb3eb2274edcdda992eb1c92b98b8a77030a3c4 100644
--- a/webkit/plugins/ppapi/message_channel.cc
+++ b/webkit/plugins/ppapi/message_channel.cc
@@ -324,7 +324,8 @@ MessageChannel::MessageChannel(PluginInstance* instance)
       early_message_queue_state_(QUEUE_MESSAGES) {
   // Now create an NPObject for receiving calls to postMessage. This sets the
   // reference count to 1.  We release it in the destructor.
-  NPObject* obj = WebBindings::createObject(NULL, &message_channel_class);
+  NPObject* obj = WebBindings::createObject(instance_->instanceNPP(),
+                                            &message_channel_class);
   DCHECK(obj);
   np_object_ = static_cast<MessageChannel::MessageChannelNPObject*>(obj);
   np_object_->message_channel = weak_ptr_factory_.GetWeakPtr();