Add embedder-specific headers to HTTP CONNECT tunnel request

net/socket/client_socket_pool_manager_impl.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_SOCKET_CLIENT_SOCKET_POOL_MANAGER_IMPL_H_
 #define NET_SOCKET_CLIENT_SOCKET_POOL_MANAGER_IMPL_H_
 
 #include <map>
 #include "base/basictypes.h"
+#include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/stl_util.h"
 #include "base/template_util.h"
 #include "base/threading/non_thread_safe.h"
 #include "net/cert/cert_database.h"
 #include "net/http/http_network_session.h"
 #include "net/socket/client_socket_pool_histograms.h"
 #include "net/socket/client_socket_pool_manager.h"
@@ skipping 41 matching lines @@
                               ClientSocketFactory* socket_factory,
                               HostResolver* host_resolver,
                               CertVerifier* cert_verifier,
                               ChannelIDService* channel_id_service,
                               TransportSecurityState* transport_security_state,
                               CTVerifier* cert_transparency_verifier,
                               const std::string& ssl_session_cache_shard,
                               ProxyService* proxy_service,
                               SSLConfigService* ssl_config_service,
                               bool enable_ssl_connect_job_waiting,
+                              const base::Callback<void(const HostPortPair&,
+                                                        HttpRequestHeaders*)>&
+                                  before_proxy_tunnel_request_callback,
                               HttpNetworkSession::SocketPoolType pool_type);
   virtual ~ClientSocketPoolManagerImpl();
 
   virtual void FlushSocketPoolsWithError(int error) OVERRIDE;
   virtual void CloseIdleSockets() OVERRIDE;
 
   virtual TransportClientSocketPool* GetTransportSocketPool() OVERRIDE;
 
   virtual SSLClientSocketPool* GetSSLSocketPool() OVERRIDE;
 
@@ skipping 59 matching lines @@
 
   ClientSocketPoolHistograms ssl_for_https_proxy_pool_histograms_;
   SSLSocketPoolMap ssl_socket_pools_for_https_proxies_;
 
   ClientSocketPoolHistograms http_proxy_pool_histograms_;
   HTTPProxySocketPoolMap http_proxy_socket_pools_;
 
   ClientSocketPoolHistograms ssl_socket_pool_for_proxies_histograms_;
   SSLSocketPoolMap ssl_socket_pools_for_proxies_;
 
+  base::Callback<void(const HostPortPair&, HttpRequestHeaders*)>
+      before_proxy_tunnel_request_callback_;
+
   DISALLOW_COPY_AND_ASSIGN(ClientSocketPoolManagerImpl);
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_CLIENT_SOCKET_POOL_MANAGER_IMPL_H_