Close idle H2 sockets when SpdySession is initialized.

net/socket/client_socket_pool_manager.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.
 //
 // ClientSocketPoolManager manages access to all ClientSocketPools.  It's a
 // simple container for all of them.  Most importantly, it handles the lifetime
 // and destruction order properly.
 
 #ifndef NET_SOCKET_CLIENT_SOCKET_POOL_MANAGER_H_
 #define NET_SOCKET_CLIENT_SOCKET_POOL_MANAGER_H_
@@ skipping 60 matching lines @@
       int socket_count);
 
   static int max_sockets_per_proxy_server(
       HttpNetworkSession::SocketPoolType pool_type);
   static void set_max_sockets_per_proxy_server(
       HttpNetworkSession::SocketPoolType pool_type,
       int socket_count);
 
   virtual void FlushSocketPoolsWithError(int error) = 0;
   virtual void CloseIdleSockets() = 0;
+  virtual void CloseIdleSocketsInGroup(const std::string& group_name) = 0;
   virtual TransportClientSocketPool* GetTransportSocketPool() = 0;
   virtual SSLClientSocketPool* GetSSLSocketPool() = 0;
   virtual SOCKSClientSocketPool* GetSocketPoolForSOCKSProxy(
       const HostPortPair& socks_proxy) = 0;
   virtual HttpProxyClientSocketPool* GetSocketPoolForHTTPProxy(
       const HostPortPair& http_proxy) = 0;
   virtual SSLClientSocketPool* GetSocketPoolForSSLWithProxy(
       const HostPortPair& proxy_server) = 0;
   // Creates a Value summary of the state of the socket pools.
   virtual std::unique_ptr<base::Value> SocketPoolInfoToValue() const = 0;
@@ skipping 100 matching lines @@
     bool expect_spdy,
     const SSLConfig& ssl_config_for_origin,
     const SSLConfig& ssl_config_for_proxy,
     PrivacyMode privacy_mode,
     const NetLogWithSource& net_log,
     int num_preconnect_streams);
 
 }  // namespace net
 
 #endif  // NET_SOCKET_CLIENT_SOCKET_POOL_MANAGER_H_