Pull out common code from client and host versions of LogToServer

remoting/host/host_status_logger.h

+// Copyright 2014 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_HOST_STATUS_LOGGER_H_
+#define REMOTING_HOST_HOST_STATUS_LOGGER_H_
+
+#include <map>
+
+#include "base/memory/weak_ptr.h"
+#include "base/threading/non_thread_safe.h"
+#include "remoting/host/host_status_observer.h"
+#include "remoting/jingle_glue/log_to_server.h"
+#include "remoting/protocol/transport.h"
+
+namespace remoting {
+
+class HostStatusMonitor;
+
+// HostStatusLogger sends host log entries to a server.
+// The contents of the log entries are described in server_log_entry_host.cc.
+// They do not contain any personally identifiable information.
+class HostStatusLogger : public HostStatusObserver,
+                         public base::NonThreadSafe {
+ public:
+  HostStatusLogger(base::WeakPtr<HostStatusMonitor> monitor,
+                  ServerLogEntry::Mode mode,
+                  SignalStrategy* signal_strategy,
+                  const std::string& directory_bot_jid);
+  virtual ~HostStatusLogger();
+
+  // Logs a session state change. Currently, this is either
+  // connection or disconnection.
+  void LogSessionStateChange(const std::string& jid, bool connected);
+
+  // HostStatusObserver interface.
+  virtual void OnClientConnected(const std::string& jid) OVERRIDE;
+  virtual void OnClientDisconnected(const std::string& jid) OVERRIDE;
+  virtual void OnClientRouteChange(
+      const std::string& jid,
+      const std::string& channel_name,
+      const protocol::TransportRoute& route) OVERRIDE;
+
+  // Allows test code to fake SignalStrategy state change events.
+  void SetSignalingStateForTest(SignalStrategy::State state);
+
+ private:
+  LogToServer log_to_server_;
+
+  base::WeakPtr<HostStatusMonitor> monitor_;
+
+  // A map from client JID to the route type of that client's connection to
+  // this host.
+  std::map<std::string, protocol::TransportRoute::RouteType>
+      connection_route_type_;
+
+  DISALLOW_COPY_AND_ASSIGN(HostStatusLogger);
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_HOST_HOST_STATUS_LOGGER_H_