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

net/http/http_network_session.cc

Index: net/http/http_network_session.cc
diff --git a/net/http/http_network_session.cc b/net/http/http_network_session.cc
index 4301a76fde527d2990ff2684c9e7cf147299b0a4..c9a716e1863be88139ec3b392087378e1fa13ede 100644
--- a/net/http/http_network_session.cc
+++ b/net/http/http_network_session.cc
@@ -143,14 +143,4 @@ 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