Makes DatagramClientSocket::GetBoundNetwork const.

net/udp/udp_client_socket.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 "net/udp/udp_client_socket.h"
 
 #include "net/base/net_errors.h"
 #include "net/log/net_log.h"
 
 namespace net {
@@ skipping 35 matching lines @@
     rv = BindToNetwork(network);
     // |network| may have disconnected between the call to GetDefaultNetwork()
     // and the call to BindToNetwork(). Loop if this is the case (|rv| will be
     // ERR_NETWORK_CHANGED).
     if (rv != ERR_NETWORK_CHANGED)
       return rv;
   }
   return rv;
 }
 
-NetworkChangeNotifier::NetworkHandle UDPClientSocket::GetBoundNetwork() {
+NetworkChangeNotifier::NetworkHandle UDPClientSocket::GetBoundNetwork() const {
   return network_;
 }
 
 int UDPClientSocket::Connect(const IPEndPoint& address) {
   int rv = socket_.Open(address.GetFamily());
   if (rv != OK)
     return rv;
   return socket_.Connect(address);
 }
 
@@ skipping 33 matching lines @@
   return socket_.NetLog();
 }
 
 #if defined(OS_WIN)
 void UDPClientSocket::UseNonBlockingIO() {
   socket_.UseNonBlockingIO();
 }
 #endif
 
 }  // namespace net