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diff --git a/net/http/http_connection.h b/net/http/http_connection.h
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef NET_HTTP_HTTP_CONNECTION_H_
+#define NET_HTTP_HTTP_CONNECTION_H_
+
+#include "base/ref_counted.h"
+#include "base/scoped_ptr.h"
+#include "net/base/client_socket.h"
+#include "net/base/completion_callback.h"
+
+namespace net {
+
+class HttpConnectionManager;
+
+// A container for a ClientSocket, representing a HTTP connection.
+//
+// The connection's |group_name| uniquely identifies the origin and type of the
+// connection.  It is used by the HttpConnectionManager to group similar http
+// connection objects.
+//
+// A connection object is initialized with a null socket.  It is the consumer's
+// job to initialize a ClientSocket object and set it on the connection.
+//
+class HttpConnection {
+ public:
+  HttpConnection(HttpConnectionManager* mgr);
+  ~HttpConnection();
+
+  // Initializes a HttpConnection object, which involves talking to the
+  // HttpConnectionManager to locate a socket to possibly reuse.
+  //
+  // If this method succeeds, then the socket member will be set to an existing
+  // socket if an existing socket was available to reuse.  Otherwise, the
+  // consumer should set the socket member of this connection object.
+  //
+  // This method returns ERR_IO_PENDING if it cannot complete synchronously, in
+  // which case the consumer should wait for the completion callback to run.
+  //
+  // Init may be called multiple times.
+  //
+  int Init(const std::string& group_name, CompletionCallback* callback);
+
+  // An initialized connection can be reset, which causes it to return to the
+  // un-initialized state.  This releases the underlying socket, which in the
+  // case of a socket that is not closed, indicates that the socket may be kept
+  // alive for use by a subsequent HttpConnection.  NOTE: To prevent the socket
+  // from being kept alive, be sure to call its Close method.
+  void Reset();
+
+  // Returns true when Init has completed successfully.
+  bool is_initialized() const { return socket_ != NULL; }
+
+  // These may only be used if is_initialized() is true.
+  ClientSocket* socket() { return socket_->get(); }
+  void set_socket(ClientSocket* s) { socket_->reset(s); }
+
+ private:
+  scoped_refptr<HttpConnectionManager> mgr_;
+  scoped_ptr<ClientSocket>* socket_;
+  std::string group_name_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(HttpConnection);
+};
+
+}  // namespace net
+
+#endif  // NET_HTTP_HTTP_CONNECTION_H_