Add embedder-specific headers to HTTP CONNECT tunnel request

net/http/http_proxy_client_socket_pool.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_HTTP_HTTP_PROXY_CLIENT_SOCKET_POOL_H_
 #define NET_HTTP_HTTP_PROXY_CLIENT_SOCKET_POOL_H_
 
 #include <string>
 
 #include "base/basictypes.h"
+#include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "net/base/host_port_pair.h"
 #include "net/base/net_export.h"
 #include "net/http/http_auth.h"
 #include "net/http/http_response_info.h"
 #include "net/http/proxy_client_socket.h"
 #include "net/socket/client_socket_pool.h"
@@ skipping 23 matching lines @@
  public:
   HttpProxySocketParams(
       const scoped_refptr<TransportSocketParams>& transport_params,
       const scoped_refptr<SSLSocketParams>& ssl_params,
       const GURL& request_url,
       const std::string& user_agent,
       const HostPortPair& endpoint,
       HttpAuthCache* http_auth_cache,
       HttpAuthHandlerFactory* http_auth_handler_factory,
       SpdySessionPool* spdy_session_pool,
-      bool tunnel);
+      bool tunnel,
+      const base::Callback<void(const HostPortPair&, HttpRequestHeaders*)>&
+          before_proxy_tunnel_request_callback);
 
   const scoped_refptr<TransportSocketParams>& transport_params() const {
     return transport_params_;
   }
   const scoped_refptr<SSLSocketParams>& ssl_params() const {
     return ssl_params_;
   }
   const GURL& request_url() const { return request_url_; }
   const std::string& user_agent() const { return user_agent_; }
   const HostPortPair& endpoint() const { return endpoint_; }
   HttpAuthCache* http_auth_cache() const { return http_auth_cache_; }
   HttpAuthHandlerFactory* http_auth_handler_factory() const {
     return http_auth_handler_factory_;
   }
   SpdySessionPool* spdy_session_pool() {
     return spdy_session_pool_;
   }
   const HostResolver::RequestInfo& destination() const;
   bool tunnel() const { return tunnel_; }
   bool ignore_limits() const { return ignore_limits_; }
 
+  const base::Callback<void(const HostPortPair&, HttpRequestHeaders*)>&
+  before_proxy_tunnel_request_callback() const {
+    return before_proxy_tunnel_request_callback_;
+  }
+
  private:
   friend class base::RefCounted<HttpProxySocketParams>;
   ~HttpProxySocketParams();
 
   const scoped_refptr<TransportSocketParams> transport_params_;
   const scoped_refptr<SSLSocketParams> ssl_params_;
   SpdySessionPool* spdy_session_pool_;
   const GURL request_url_;
   const std::string user_agent_;
   const HostPortPair endpoint_;
   HttpAuthCache* const http_auth_cache_;
   HttpAuthHandlerFactory* const http_auth_handler_factory_;
   const bool tunnel_;
   bool ignore_limits_;
+  base::Callback<void(const HostPortPair&, HttpRequestHeaders*)>
+      before_proxy_tunnel_request_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpProxySocketParams);
 };
 
 // HttpProxyConnectJob optionally establishes a tunnel through the proxy
 // server after connecting the underlying transport socket.
 class HttpProxyConnectJob : public ConnectJob {
  public:
   HttpProxyConnectJob(const std::string& group_name,
                       RequestPriority priority,
@@ skipping 79 matching lines @@
  public:
   typedef HttpProxySocketParams SocketParams;
 
   HttpProxyClientSocketPool(
       int max_sockets,
       int max_sockets_per_group,
       ClientSocketPoolHistograms* histograms,
       HostResolver* host_resolver,
       TransportClientSocketPool* transport_pool,
       SSLClientSocketPool* ssl_pool,
+      const base::Callback<void(const HostPortPair&, HttpRequestHeaders*)>&
+          before_proxy_tunnel_request_callback,
       NetLog* net_log);
 
   virtual ~HttpProxyClientSocketPool();
 
   // ClientSocketPool implementation.
   virtual int RequestSocket(const std::string& group_name,
                             const void* connect_params,
                             RequestPriority priority,
                             ClientSocketHandle* handle,
                             const CompletionCallback& callback,
@@ skipping 45 matching lines @@
 
  private:
   typedef ClientSocketPoolBase<HttpProxySocketParams> PoolBase;
 
   class HttpProxyConnectJobFactory : public PoolBase::ConnectJobFactory {
    public:
     HttpProxyConnectJobFactory(
         TransportClientSocketPool* transport_pool,
         SSLClientSocketPool* ssl_pool,
         HostResolver* host_resolver,
+        base::Callback<void(const HostPortPair&, HttpRequestHeaders*)>
+            before_proxy_tunnel_request_callback,
         NetLog* net_log);
 
+    virtual ~HttpProxyConnectJobFactory();
+
     // ClientSocketPoolBase::ConnectJobFactory methods.
     virtual scoped_ptr<ConnectJob> NewConnectJob(
         const std::string& group_name,
         const PoolBase::Request& request,
         ConnectJob::Delegate* delegate) const OVERRIDE;
 
     virtual base::TimeDelta ConnectionTimeout() const OVERRIDE;
 
    private:
     TransportClientSocketPool* const transport_pool_;
     SSLClientSocketPool* const ssl_pool_;
     HostResolver* const host_resolver_;
+    base::Callback<void(const HostPortPair&, HttpRequestHeaders*)>
+        before_proxy_tunnel_request_callback_;
     NetLog* net_log_;
     base::TimeDelta timeout_;
 
     DISALLOW_COPY_AND_ASSIGN(HttpProxyConnectJobFactory);
   };
 
   TransportClientSocketPool* const transport_pool_;
   SSLClientSocketPool* const ssl_pool_;
   PoolBase base_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpProxyClientSocketPool);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_PROXY_CLIENT_SOCKET_POOL_H_