Do not attempt to reuse active sockets after a socket pool flush (usually a network change).

net/http/http_network_session.cc

 // Copyright (c) 2010 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/http/http_network_session.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/stl_util-inl.h"
@@ skipping 125 matching lines @@
 // static
 uint16 HttpNetworkSession::fixed_https_port() {
   return g_fixed_https_port;
 }
 
 // static
 void HttpNetworkSession::set_fixed_https_port(uint16 port) {
   g_fixed_https_port = port;
 }
 
-void HttpNetworkSession::ReplaceTCPSocketPool() {
-  tcp_socket_pool_ = new TCPClientSocketPool(g_max_sockets,
-                                             g_max_sockets_per_group,
-                                             tcp_pool_histograms_,
-                                             host_resolver_,
-                                             socket_factory_,
-                                             network_change_notifier_,
-                                             net_log_);
-}
-
 }  //  namespace net