Allow p2p UDP packages to set DSCP

content/common/p2p_messages.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.
 
 // IPC messages for the P2P Transport API.
 // Multiply-included message file, hence no include guard.
 
 #include "content/common/content_export.h"
 #include "content/common/p2p_sockets.h"
 #include "ipc/ipc_message_macros.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/net_util.h"
 
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
 #define IPC_MESSAGE_START P2PMsgStart
 
 IPC_ENUM_TRAITS(content::P2PSocketType)
+IPC_ENUM_TRAITS(net::DiffServCodePoint)
 
 IPC_STRUCT_TRAITS_BEGIN(net::NetworkInterface)
   IPC_STRUCT_TRAITS_MEMBER(name)
   IPC_STRUCT_TRAITS_MEMBER(address)
 IPC_STRUCT_TRAITS_END()
 
 // P2P Socket messages sent from the browser to the renderer.
 
 IPC_MESSAGE_CONTROL1(P2PMsg_NetworkListChanged,
                      net::NetworkInterfaceList /* networks */)
@@ skipping 37 matching lines @@
                      int /* socket_id */,
                      net::IPEndPoint /* local_address */,
                      net::IPEndPoint /* remote_address */)
 
 IPC_MESSAGE_CONTROL3(P2PHostMsg_AcceptIncomingTcpConnection,
                     int /* listen_socket_id */,
                     net::IPEndPoint /* remote_address */,
                     int /* connected_socket_id */)
 
 // TODO(sergeyu): Use shared memory to pass the data.
-IPC_MESSAGE_CONTROL3(P2PHostMsg_Send,
+IPC_MESSAGE_CONTROL4(P2PHostMsg_Send,
                      int /* socket_id */,
                      net::IPEndPoint /* socket_address */,
-                     std::vector<char> /* data */)
+                     std::vector<char> /* data */,
+                     net::DiffServCodePoint /* dscp */)
 
 IPC_MESSAGE_CONTROL1(P2PHostMsg_DestroySocket,
                      int /* socket_id */)