Generalize the net module's LoadLog facility from a passive container, to an event stream (NetLog).

net/socket/client_socket.h

 // Copyright (c) 2006-2009 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_H_
 #define NET_SOCKET_CLIENT_SOCKET_H_
 
 #include "net/socket/socket.h"
 
 namespace net {
 
 class AddressList;
-class LoadLog;
+class BoundNetLog;
 
 class ClientSocket : public Socket {
  public:
   // Called to establish a connection.  Returns OK if the connection could be
   // established synchronously.  Otherwise, ERR_IO_PENDING is returned and the
   // given callback will run asynchronously when the connection is established
   // or when an error occurs.  The result is some other error code if the
   // connection could not be established.
   //
   // The socket's Read and Write methods may not be called until Connect
   // succeeds.
   //
   // It is valid to call Connect on an already connected socket, in which case
   // OK is simply returned.
   //
   // Connect may also be called again after a call to the Disconnect method.
   //
-  virtual int Connect(CompletionCallback* callback, LoadLog* load_log) = 0;
+  virtual int Connect(CompletionCallback* callback,
+                      const BoundNetLog& net_log) = 0;
 
   // Called to disconnect a socket.  Does nothing if the socket is already
   // disconnected.  After calling Disconnect it is possible to call Connect
   // again to establish a new connection.
   //
   // If IO (Connect, Read, or Write) is pending when the socket is
   // disconnected, the pending IO is cancelled, and the completion callback
   // will not be called.
   virtual void Disconnect() = 0;
 
   // Called to test if the connection is still alive.  Returns false if a
   // connection wasn't established or the connection is dead.
   virtual bool IsConnected() const = 0;
 
   // Called to test if the connection is still alive and idle.  Returns false
   // if a connection wasn't established, the connection is dead, or some data
   // have been received.
   virtual bool IsConnectedAndIdle() const = 0;
 
   // Copies the peer address to |address| and returns a network error code.
   virtual int GetPeerAddress(AddressList* address) const = 0;
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_CLIENT_SOCKET_H_