$OpenBSD: patch-content_plugin_webplugin_proxy_h,v 1.2 2011/08/16 08:17:44 robert Exp $
--- content/plugin/webplugin_proxy.h.orig	Wed Jul 27 10:01:09 2011
+++ content/plugin/webplugin_proxy.h	Tue Aug  2 20:12:17 2011
@@ -113,7 +113,7 @@ class WebPluginProxy : public webkit::npapi::WebPlugin
                       const TransportDIB::Handle& windowless_buffer,
                       const TransportDIB::Handle& background_buffer,
                       bool transparent
-#if defined(OS_MACOSX)
+#if defined(OS_MACOSX) || defined(OS_OPENBSD)
                       ,
                       int ack_key
 #endif