Close idle connections / SPDY sessions when needed.

net/http/http_proxy_client_socket_pool.h

 // Copyright (c) 2011 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_PROXY_CLIENT_SOCKET_POOL_H_
 #define NET_HTTP_HTTP_PROXY_CLIENT_SOCKET_POOL_H_
 #pragma once
 
 #include <string>
 
@@ skipping 149 matching lines @@
   scoped_ptr<ProxyClientSocket> transport_socket_;
   bool using_spdy_;
 
   HttpResponseInfo error_response_info_;
 
   scoped_refptr<SpdyStream> spdy_stream_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpProxyConnectJob);
 };
 
-class NET_EXPORT_PRIVATE HttpProxyClientSocketPool : public ClientSocketPool {
+class NET_EXPORT_PRIVATE HttpProxyClientSocketPool
+    : public ClientSocketPool, public LayeredPool {
  public:
   HttpProxyClientSocketPool(
       int max_sockets,
       int max_sockets_per_group,
       ClientSocketPoolHistograms* histograms,
       HostResolver* host_resolver,
       TransportClientSocketPool* transport_pool,
       SSLClientSocketPool* ssl_pool,
       NetLog* net_log);
 
   virtual ~HttpProxyClientSocketPool();
 
   // ClientSocketPool methods:
   virtual int RequestSocket(const std::string& group_name,
                             const void* connect_params,
                             RequestPriority priority,
                             ClientSocketHandle* handle,
                             OldCompletionCallback* callback,
-                            const BoundNetLog& net_log);
+                            const BoundNetLog& net_log) OVERRIDE;
 
   virtual void RequestSockets(const std::string& group_name,
                               const void* params,
                               int num_sockets,
-                              const BoundNetLog& net_log);
+                              const BoundNetLog& net_log) OVERRIDE;
 
   virtual void CancelRequest(const std::string& group_name,
-                             ClientSocketHandle* handle);
+                             ClientSocketHandle* handle) OVERRIDE;
 
   virtual void ReleaseSocket(const std::string& group_name,
                              StreamSocket* socket,
-                             int id);
+                             int id) OVERRIDE;
 
-  virtual void Flush();
+  virtual void Flush() OVERRIDE;
 
-  virtual void CloseIdleSockets();
+  virtual bool IsStalled() const OVERRIDE;
 
-  virtual int IdleSocketCount() const;
+  virtual void CloseIdleSockets() OVERRIDE;
 
-  virtual int IdleSocketCountInGroup(const std::string& group_name) const;
+  virtual int IdleSocketCount() const OVERRIDE;
 
-  virtual LoadState GetLoadState(const std::string& group_name,
-                                 const ClientSocketHandle* handle) const;
+  virtual int IdleSocketCountInGroup(
+      const std::string& group_name) const OVERRIDE;
+
+  virtual LoadState GetLoadState(
+      const std::string& group_name,
+      const ClientSocketHandle* handle) const OVERRIDE;
+
+  virtual void AddLayeredPool(LayeredPool* layered_pool) OVERRIDE;
+
+  virtual void RemoveLayeredPool(LayeredPool* layered_pool) OVERRIDE;
 
   virtual base::DictionaryValue* GetInfoAsValue(
       const std::string& name,
       const std::string& type,
-      bool include_nested_pools) const;
+      bool include_nested_pools) const OVERRIDE;
 
-  virtual base::TimeDelta ConnectionTimeout() const;
+  virtual base::TimeDelta ConnectionTimeout() const OVERRIDE;
 
-  virtual ClientSocketPoolHistograms* histograms() const;
+  virtual ClientSocketPoolHistograms* histograms() const OVERRIDE;
+
+  // LayeredPool methods:
+  virtual bool CloseOneIdleConnection() OVERRIDE;
 
  private:
   typedef ClientSocketPoolBase<HttpProxySocketParams> PoolBase;
 
   class HttpProxyConnectJobFactory : public PoolBase::ConnectJobFactory {
    public:
     HttpProxyConnectJobFactory(
         TransportClientSocketPool* transport_pool,
         SSLClientSocketPool* ssl_pool,
         HostResolver* host_resolver,
@@ skipping 22 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(HttpProxyClientSocketPool);
 };
 
 REGISTER_SOCKET_PARAMS_FOR_POOL(HttpProxyClientSocketPool,
                                 HttpProxySocketParams);
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_PROXY_CLIENT_SOCKET_POOL_H_