The host sends simple log entries to the server.

remoting/host/log_to_server.h

Index: remoting/host/log_to_server.h
diff --git a/remoting/host/log_to_server.h b/remoting/host/log_to_server.h
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+// Copyright (c) 2011 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 REMOTING_HOST_LOG_TO_SERVER_H_
+#define REMOTING_HOST_LOG_TO_SERVER_H_
+
+#include <deque>
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "remoting/host/host_status_observer.h"
+#include "remoting/host/server_log_entry.h"
+
+namespace base {
+class MessageLoopProxy;
+}  // namespace base
+
+namespace buzz {
+class XmlElement;
+}  // namespace buzz
+
+namespace remoting {
+
+class IqSender;
+
+/**
+ * A class that sends log entries to a server.
+ *
+ * The class is not thread-safe.
+ */
+class LogToServer : public HostStatusObserver {
+ public:
+  explicit LogToServer(base::MessageLoopProxy* message_loop);
+  virtual ~LogToServer();
+
+  // Logs a session state change.
+  // Currently, this is either connection or disconnection.
+  void LogSessionStateChange(bool connected);
+
+  // HostStatusObserver implementation.
+  virtual void OnSignallingConnected(SignalStrategy* signal_strategy,
+                                     const std::string& full_jid) OVERRIDE;
+  virtual void OnSignallingDisconnected() OVERRIDE;
+  virtual void OnClientAuthenticated(const std::string& jid) OVERRIDE;
+  virtual void OnClientDisconnected(const std::string& jid) OVERRIDE;
+  virtual void OnAccessDenied() OVERRIDE;
+  virtual void OnShutdown() OVERRIDE;
+
+ private:
+  void Log(const ServerLogEntry& entry);
+  void SendPendingEntries();
+
+  scoped_refptr<base::MessageLoopProxy> message_loop_;
+  scoped_ptr<IqSender> iq_sender_;
+  std::deque<ServerLogEntry> pending_entries_;
+
+  DISALLOW_COPY_AND_ASSIGN(LogToServer);
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_HOST_LOG_TO_SERVER_H_