Makes DatagramClientSocket::GetBoundNetwork const.

net/socket/socket_test_util.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 "net/socket/socket_test_util.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 1330 matching lines @@
 
 int MockUDPClientSocket::BindToNetwork(
     NetworkChangeNotifier::NetworkHandle network) {
   return ERR_NOT_IMPLEMENTED;
 }
 
 int MockUDPClientSocket::BindToDefaultNetwork() {
   return ERR_NOT_IMPLEMENTED;
 }
 
-NetworkChangeNotifier::NetworkHandle MockUDPClientSocket::GetBoundNetwork() {
+NetworkChangeNotifier::NetworkHandle MockUDPClientSocket::GetBoundNetwork()
+    const {
   return NetworkChangeNotifier::kInvalidNetworkHandle;
 }
 
 int MockUDPClientSocket::Connect(const IPEndPoint& address) {
   if (!data_)
     return ERR_UNEXPECTED;
   connected_ = true;
   peer_addr_ = address;
   return data_->connect_data().result;
 }
@@ skipping 333 matching lines @@
 }
 
 int64_t CountWriteBytes(const MockWrite writes[], size_t writes_size) {
   int64_t total = 0;
   for (const MockWrite* write = writes; write != writes + writes_size; ++write)
     total += write->data_len;
   return total;
 }
 
 }  // namespace net