Flush socket pools and SPDY session pool properly on explicit requests and network changes.

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 "base/ref_counted.h"
 #include "base/scoped_ptr.h"
 #include "net/base/host_resolver.h"
+#include "net/base/network_change_notifier.h"
 #include "net/base/ssl_client_auth_cache.h"
 #include "net/base/ssl_config_service.h"
 #include "net/http/http_alternate_protocols.h"
 #include "net/http/http_auth_cache.h"
 #include "net/proxy/proxy_service.h"
 #include "net/socket/socks_client_socket_pool.h"
 #include "net/socket/tcp_client_socket_pool.h"
 
 namespace net {
 
 class ClientSocketFactory;
 class HttpAuthHandlerFactory;
 class SpdySessionPool;
 class NetworkChangeNotifier;
 class URLSecurityManager;
 
 // This class holds session objects used by HttpNetworkTransaction objects.
-class HttpNetworkSession : public base::RefCounted<HttpNetworkSession> {
+class HttpNetworkSession
+    : public base::RefCounted<HttpNetworkSession>,
+      public NetworkChangeNotifier::Observer {
  public:
   HttpNetworkSession(
       NetworkChangeNotifier* network_change_notifier,
       HostResolver* host_resolver,
       ProxyService* proxy_service,
       ClientSocketFactory* client_socket_factory,
       SSLConfigService* ssl_config_service,
-      SpdySessionPool* spdy_session_pool,
       HttpAuthHandlerFactory* http_auth_handler_factory);
 
   HttpAuthCache* auth_cache() { return &auth_cache_; }
   SSLClientAuthCache* ssl_client_auth_cache() {
     return &ssl_client_auth_cache_;
   }
 
   const HttpAlternateProtocols& alternate_protocols() const {
     return alternate_protocols_;
   }
@@ skipping 16 matching lines @@
   const scoped_refptr<SpdySessionPool>& spdy_session_pool() {
     return spdy_session_pool_;
   }
   HttpAuthHandlerFactory* http_auth_handler_factory() {
     return http_auth_handler_factory_;
   }
 
   // Returns a pointer to the URL security manager.
   URLSecurityManager* GetURLSecurityManager();
 
-  // Replace the current socket pool with a new one.  This effectively
-  // abandons the current pool.  This is only used for debugging.
-  void ReplaceTCPSocketPool();
+  // Flushes cached data in the HttpNetworkSession.
+  void Flush();
+
+  // NetworkChangeNotifier::Observer methods:
+  virtual void OnIPAddressChanged();
 
   static void set_max_sockets_per_group(int socket_count);
 
   static uint16 fixed_http_port() { return g_fixed_http_port; }
   static void set_fixed_http_port(uint16 port) { g_fixed_http_port = port; }
 
   static uint16 fixed_https_port() { return g_fixed_https_port; }
   static void set_fixed_https_port(uint16 port) { g_fixed_https_port = port; }
 
  private:
   friend class base::RefCounted<HttpNetworkSession>;
   FRIEND_TEST(HttpNetworkTransactionTest, GroupNameForProxyConnections);
 
   ~HttpNetworkSession();
 
+  scoped_refptr<TCPClientSocketPool> CreateNewTCPSocketPool();
+  scoped_refptr<SOCKSClientSocketPool> CreateNewSOCKSSocketPool();
+
   // Total limit of sockets. Not a constant to allow experiments.
   static int max_sockets_;
 
   // Default to allow up to 6 connections per host. Experiment and tuning may
   // try other values (greater than 0).  Too large may cause many problems, such
   // as home routers blocking the connections!?!?
   static int max_sockets_per_group_;
 
   static uint16 g_fixed_http_port;
   static uint16 g_fixed_https_port;
 
   HttpAuthCache auth_cache_;
   SSLClientAuthCache ssl_client_auth_cache_;
   HttpAlternateProtocols alternate_protocols_;
   NetworkChangeNotifier* const network_change_notifier_;
+  ClientSocketFactory* socket_factory_;
+  scoped_refptr<HostResolver> host_resolver_;
   scoped_refptr<TCPClientSocketPool> tcp_socket_pool_;
   scoped_refptr<SOCKSClientSocketPool> socks_socket_pool_;
-  ClientSocketFactory* socket_factory_;
-  scoped_refptr<HostResolver> host_resolver_;
   scoped_refptr<ProxyService> proxy_service_;
   scoped_refptr<SSLConfigService> ssl_config_service_;
   scoped_refptr<SpdySessionPool> spdy_session_pool_;
   HttpAuthHandlerFactory* http_auth_handler_factory_;
   scoped_ptr<URLSecurityManager> url_security_manager_;
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_NETWORK_SESSION_H_