[GCM] Add connection factory for creating MCS connections

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 129 matching lines @@
     const HostPortPair& host_port_pair,
     HttpNetworkSession* session,
     const ProxyInfo& proxy_info,
     const SSLConfig& ssl_config_for_origin,
     const SSLConfig& ssl_config_for_proxy,
     PrivacyMode privacy_mode,
     const BoundNetLog& net_log,
     ClientSocketHandle* socket_handle,
     const CompletionCallback& callback);
 
+// A helper method that uses the passed in proxy information to initialize a
+// ClientSocketHandle with the relevant socket pool. Use this method for
+// a raw socket connection with TLS negotiation to a host-port pair (that needs
+// to tunnel through the proxies).
+NET_EXPORT int InitSocketHandleForTlsConnect(
+    const HostPortPair& host_port_pair,
+    HttpNetworkSession* session,
+    const ProxyInfo& proxy_info,
+    const SSLConfig& ssl_config_for_origin,
+    const SSLConfig& ssl_config_for_proxy,
+    PrivacyMode privacy_mode,
+    const BoundNetLog& net_log,
+    ClientSocketHandle* socket_handle,
+    const CompletionCallback& callback);
+
 // Similar to InitSocketHandleForHttpRequest except that it initiates the
 // desired number of preconnect streams from the relevant socket pool.
 int PreconnectSocketsForHttpRequest(
     const GURL& request_url,
     const HttpRequestHeaders& request_extra_headers,
     int request_load_flags,
     RequestPriority request_priority,
     HttpNetworkSession* session,
     const ProxyInfo& proxy_info,
     bool force_spdy_over_ssl,
     bool want_spdy_over_npn,
     const SSLConfig& ssl_config_for_origin,
     const SSLConfig& ssl_config_for_proxy,
     PrivacyMode privacy_mode,
     const BoundNetLog& net_log,
     int num_preconnect_streams);
 
 }  // namespace net
 
 #endif  // NET_SOCKET_CLIENT_SOCKET_POOL_MANAGER_H_