Allow p2p UDP packages to set DSCP

content/browser/renderer_host/p2p/socket_host_udp.cc

 // 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.
 
 #include "content/browser/renderer_host/p2p/socket_host_udp.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "content/common/p2p_messages.h"
 #include "ipc/ipc_sender.h"
@@ skipping 48 matching lines @@
 }
 
 P2PSocketHostUdp::PendingPacket::~PendingPacket() {
 }
 
 P2PSocketHostUdp::P2PSocketHostUdp(IPC::Sender* message_sender, int id)
     : P2PSocketHost(message_sender, id),
       socket_(new net::UDPServerSocket(NULL, net::NetLog::Source())),
       send_pending_(false),
       send_packet_count_(0) {
+  // 34 is the code "AF4", which is recommended for interactive multimedia.
+  socket_->SetToS(34);
 }
 
 P2PSocketHostUdp::~P2PSocketHostUdp() {
   if (state_ == STATE_OPEN) {
     DCHECK(socket_.get());
     socket_.reset();
   }
 }
 
 bool P2PSocketHostUdp::Init(const net::IPEndPoint& local_address,
@@ skipping 172 matching lines @@
 }
 
 P2PSocketHost* P2PSocketHostUdp::AcceptIncomingTcpConnection(
     const net::IPEndPoint& remote_address, int id) {
   NOTREACHED();
   OnError();
   return NULL;
 }
 
 }  // namespace content