AllowBroadcast() is exposed to NaCl.

ppapi/proxy/ppb_udp_socket_private_proxy.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PPAPI_PROXY_PPB_UDP_SOCKET_PRIVATE_PROXY_H_
 #define PPAPI_PROXY_PPB_UDP_SOCKET_PRIVATE_PROXY_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 12 matching lines @@
 
   static PP_Resource CreateProxyResource(PP_Instance instance);
 
   // InterfaceProxy implementation.
   virtual bool OnMessageReceived(const IPC::Message& msg);
 
   static const ApiID kApiID = API_ID_PPB_UDPSOCKET_PRIVATE;
 
  private:
   // Browser->plugin message handlers.
+  void OnMsgSetSocketFeatureACK(uint32 plugin_dispatcher_id,
+                                uint32 socket_id,
+                                bool succeeded);
   void OnMsgBindACK(uint32 plugin_dispatcher_id,
                     uint32 socket_id,
                     bool succeeded,
                     const PP_NetAddress_Private& bound_addr);
   void OnMsgRecvFromACK(uint32 plugin_dispatcher_id,
                         uint32 socket_id,
                         bool succeeded,
                         const std::string& data,
                         const PP_NetAddress_Private& addr);
   void OnMsgSendToACK(uint32 plugin_dispatcher_id,
                       uint32 socket_id,
                       bool succeeded,
                       int32_t bytes_written);
 
   DISALLOW_COPY_AND_ASSIGN(PPB_UDPSocket_Private_Proxy);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_PPB_UDP_SOCKET_PRIVATE_PROXY_H_