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

net/ftp/ftp_transaction.h

 // Copyright (c) 2008 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_FTP_FTP_TRANSACTION_H_
 #define NET_FTP_FTP_TRANSACTION_H_
 
 #include "net/base/completion_callback.h"
 #include "net/base/io_buffer.h"
 #include "net/base/load_states.h"
 
 namespace net {
 
 class FtpResponseInfo;
 class FtpRequestInfo;
-class LoadLog;
+class BoundNetLog;
 
 // Represents a single FTP transaction.
 class FtpTransaction {
  public:
   // Stops any pending IO and destroys the transaction object.
   virtual ~FtpTransaction() {}
 
   // Starts the FTP transaction (i.e., sends the FTP request).
   //
   // Returns OK if the transaction could be started synchronously, which means
   // that the request was served from the cache (only supported for directory
   // listings).  ERR_IO_PENDING is returned to indicate that the
   // CompletionCallback will be notified once response info is available or if
   // an IO error occurs.  Any other return value indicates that the transaction
   // could not be started.
   //
   // Regardless of the return value, the caller is expected to keep the
   // request_info object alive until Destroy is called on the transaction.
   //
   // NOTE: The transaction is not responsible for deleting the callback object.
   //
-  // Profiling information for the request is saved to |load_log| if non-NULL.
+  // Profiling information for the request is saved to |net_log| if non-NULL.
   virtual int Start(const FtpRequestInfo* request_info,
                     CompletionCallback* callback,
-                    LoadLog* load_log) = 0;
+                    const BoundNetLog& net_log) = 0;
 
   // Restarts the FTP transaction with authentication credentials.
   virtual int RestartWithAuth(const std::wstring& username,
                               const std::wstring& password,
                               CompletionCallback* callback) = 0;
 
   // Once response info is available for the transaction, response data may be
   // read by calling this method.
   //
   // Response data is copied into the given buffer and the number of bytes
@@ skipping 18 matching lines @@
   virtual LoadState GetLoadState() const = 0;
 
   // Returns the upload progress in bytes.  If there is no upload data,
   // zero will be returned.
   virtual uint64 GetUploadProgress() const = 0;
 };
 
 }  // namespace net
 
 #endif  // NET_FTP_FTP_TRANSACTION_H_