Properly handle STUN requests and responses from relay servers.

content/browser/renderer_host/p2p/socket_host.cc

 // Copyright (c) 2011 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.h"
 
 #include "net/base/sys_byteorder.h"
 #include "content/browser/renderer_host/p2p/socket_host_tcp.h"
 #include "content/browser/renderer_host/p2p/socket_host_tcp_server.h"
 #include "content/browser/renderer_host/p2p/socket_host_udp.h"
@@ skipping 48 matching lines @@
     case STUN_DATA_INDICATION:
       *type = static_cast<StunMessageType>(message_type);
       return true;
 
     default:
       return false;
   }
 }
 
 // static
+bool P2PSocketHost::IsRequestOrResponse(StunMessageType type) {
+  return type == STUN_BINDING_REQUEST || type == STUN_BINDING_RESPONSE ||
+      type == STUN_ALLOCATE_REQUEST || type == STUN_ALLOCATE_RESPONSE;
+}
+
+// static
 P2PSocketHost* P2PSocketHost::Create(
     IPC::Message::Sender* message_sender, int routing_id, int id,
     P2PSocketType type) {
   switch (type) {
     case P2P_SOCKET_UDP:
       return new P2PSocketHostUdp(message_sender, routing_id, id);
 
     case P2P_SOCKET_TCP_SERVER:
       return new P2PSocketHostTcpServer(message_sender, routing_id, id);
 
     case P2P_SOCKET_TCP_CLIENT:
       return new P2PSocketHostTcp(message_sender, routing_id, id);
   }
 
   NOTREACHED();
   return NULL;
 }