Add embedder-specific headers to HTTP CONNECT tunnel request

net/socket/client_socket_pool_manager.cc

 // 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.
 
 #include "net/socket/client_socket_pool_manager.h"
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
@@ skipping 171 matching lines @@
                                          *proxy_host_port.get(),
                                          ssl_config_for_proxy,
                                          PRIVACY_MODE_DISABLED,
                                          load_flags,
                                          force_spdy_over_ssl,
                                          want_spdy_over_npn);
         proxy_tcp_params = NULL;
       }
 
       http_proxy_params =
-          new HttpProxySocketParams(proxy_tcp_params,
-                                    ssl_params,
-                                    request_url,
-                                    user_agent,
-                                    origin_host_port,
-                                    session->http_auth_cache(),
-                                    session->http_auth_handler_factory(),
-                                    session->spdy_session_pool(),
-                                    force_tunnel || using_ssl);
+          new HttpProxySocketParams(
+              proxy_tcp_params,
+              ssl_params,
+              request_url,
+              user_agent,
+              origin_host_port,
+              session->http_auth_cache(),
+              session->http_auth_handler_factory(),
+              session->spdy_session_pool(),
+              force_tunnel || using_ssl,
+              session->params().before_proxy_tunnel_request_callback);
     } else {
       DCHECK(proxy_info.is_socks());
       char socks_version;
       if (proxy_server.scheme() == ProxyServer::SCHEME_SOCKS5)
         socks_version = '5';
       else
         socks_version = '4';
       connection_group = base::StringPrintf(
           "socks%c/%s", socks_version, connection_group.c_str());
 
@@ skipping 266 matching lines @@
     int num_preconnect_streams) {
   return InitSocketPoolHelper(
       request_url, request_extra_headers, request_load_flags, request_priority,
       session, proxy_info, force_spdy_over_ssl, want_spdy_over_npn,
       ssl_config_for_origin, ssl_config_for_proxy, false, privacy_mode, net_log,
       num_preconnect_streams, NULL, HttpNetworkSession::NORMAL_SOCKET_POOL,
       OnHostResolutionCallback(), CompletionCallback());
 }
 
 }  // namespace net