Revert of Remove reference counting from HttpNetworkSession.

net/http/http_network_session.h

 // 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.
 
 #ifndef NET_HTTP_HTTP_NETWORK_SESSION_H_
 #define NET_HTTP_HTTP_NETWORK_SESSION_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 39 matching lines @@
 class QuicServerInfoFactory;
 class SocketPerformanceWatcherFactory;
 class SOCKSClientSocketPool;
 class SSLClientSocketPool;
 class SSLConfigService;
 class TransportClientSocketPool;
 class TransportSecurityState;
 
 // This class holds session objects used by HttpNetworkTransaction objects.
 class NET_EXPORT HttpNetworkSession
-    : NON_EXPORTED_BASE(public base::NonThreadSafe) {
+    : public base::RefCounted<HttpNetworkSession>,
+      NON_EXPORTED_BASE(public base::NonThreadSafe) {
  public:
   struct NET_EXPORT Params {
     Params();
     ~Params();
 
     ClientSocketFactory* client_socket_factory;
     HostResolver* host_resolver;
     CertVerifier* cert_verifier;
     CertPolicyEnforcer* cert_policy_enforcer;
     ChannelIDService* channel_id_service;
@@ skipping 61 matching lines @@
     ProxyDelegate* proxy_delegate;
   };
 
   enum SocketPoolType {
     NORMAL_SOCKET_POOL,
     WEBSOCKET_SOCKET_POOL,
     NUM_SOCKET_POOL_TYPES
   };
 
   explicit HttpNetworkSession(const Params& params);
-  ~HttpNetworkSession();
 
   HttpAuthCache* http_auth_cache() { return &http_auth_cache_; }
   SSLClientAuthCache* ssl_client_auth_cache() {
     return &ssl_client_auth_cache_;
   }
 
   void AddResponseDrainer(HttpResponseBodyDrainer* drainer);
 
   void RemoveResponseDrainer(HttpResponseBodyDrainer* drainer);
 
@@ skipping 52 matching lines @@
   bool IsProtocolEnabled(AlternateProtocol protocol) const;
 
   // Populates |*next_protos| with protocols.
   void GetNextProtos(NextProtoVector* next_protos) const;
 
   // Convenience function for searching through |params_| for
   // |forced_spdy_exclusions|.
   bool HasSpdyExclusion(HostPortPair host_port_pair) const;
 
  private:
+  friend class base::RefCounted<HttpNetworkSession>;
   friend class HttpNetworkSessionPeer;
 
+  ~HttpNetworkSession();
+
   ClientSocketPoolManager* GetSocketPoolManager(SocketPoolType pool_type);
 
   NetLog* const net_log_;
   NetworkDelegate* const network_delegate_;
   const base::WeakPtr<HttpServerProperties> http_server_properties_;
   CertVerifier* const cert_verifier_;
   HttpAuthHandlerFactory* const http_auth_handler_factory_;
 
   // Not const since it's modified by HttpNetworkSessionPeer for testing.
   ProxyService* proxy_service_;
@@ skipping 11 matching lines @@
 
   NextProtoVector next_protos_;
   bool enabled_protocols_[NUM_VALID_ALTERNATE_PROTOCOLS];
 
   Params params_;
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_NETWORK_SESSION_H_