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

net/http/http_network_session.h

 // 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.
 
 #ifndef NET_HTTP_HTTP_NETWORK_SESSION_H_
 #define NET_HTTP_HTTP_NETWORK_SESSION_H_
 
 #include <map>
 #include "base/ref_counted.h"
 #include "base/scoped_ptr.h"
@@ skipping 66 matching lines @@
   HostResolver* host_resolver() { return host_resolver_; }
   ProxyService* proxy_service() { return proxy_service_; }
   SSLConfigService* ssl_config_service() { return ssl_config_service_; }
   const scoped_refptr<SpdySessionPool>& spdy_session_pool() {
     return spdy_session_pool_;
   }
   HttpAuthHandlerFactory* http_auth_handler_factory() {
     return http_auth_handler_factory_;
   }
 
-  // Replace the current socket pool with a new one.  This effectively
-  // abandons the current pool.  This is only used for debugging.
-  void ReplaceTCPSocketPool();
-
   static void set_max_sockets_per_group(int socket_count);
 
   static uint16 fixed_http_port();
   static void set_fixed_http_port(uint16 port);
 
   static uint16 fixed_https_port();
   static void set_fixed_https_port(uint16 port);
 
  private:
   typedef std::map<HostPortPair, scoped_refptr<TCPClientSocketPool> >
@@ skipping 23 matching lines @@
   scoped_refptr<SSLConfigService> ssl_config_service_;
   scoped_refptr<SpdySessionPool> spdy_session_pool_;
   HttpAuthHandlerFactory* http_auth_handler_factory_;
   NetLog* net_log_;
   SpdySettingsStorage spdy_settings_;
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_NETWORK_SESSION_H_