TelemetryLogWriter cleanups

remoting/signaling/telemetry_log_writer.h

-// Copyright 2016 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_SIGNALING_TELEMETRY_LOG_WRITER_H_
-#define REMOTING_SIGNALING_TELEMETRY_LOG_WRITER_H_
-
-#include <deque>
-#include <string>
-
-#include "base/callback.h"
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "base/threading/non_thread_safe.h"
-#include "base/values.h"
-#include "remoting/base/url_request.h"
-#include "remoting/signaling/chromoting_event.h"
-#include "remoting/signaling/chromoting_event_log_writer.h"
-
-namespace remoting {
-
-// TelemetryLogWriter sends log entries (ChromotingEvent) to the telemetry
-// server.
-// Logs to be sent will be queued and sent when it is available. Logs failed
-// to send will be retried for a few times and dropped if they still can't be
-// sent.
-class TelemetryLogWriter :  public ChromotingEventLogWriter,
-                            public base::NonThreadSafe {
- public:
-  TelemetryLogWriter(const std::string& telemetry_base_url,
-                     std::unique_ptr<UrlRequestFactory> request_factory);
-
-  // "Authorization:Bearer {TOKEN}" will be added if auth_token is not empty.
-  // After this function is called, the log writer will try to send out pending
-  // logs if the list is not empty.
-  void SetAuthToken(const std::string& auth_token) override;
-
-  // The closure will be called when the request fails with unauthorized error
-  // code. The closure should call SetAuthToken to set the token.
-  // If the closure is not set, the log writer will try to resend the logs
-  // immediately.
-  void SetAuthClosure(const base::Closure& closure) override;
-
-  // Push the log entry to the pending list and send out all the pending logs.
-  void Log(const ChromotingEvent& entry) override;
-
-  ~TelemetryLogWriter() override;
-
- private:
-  void SendPendingEntries();
-  void PostJsonToServer(const std::string& json);
-  void OnSendLogResult(const remoting::UrlRequest::Result& result);
-
-  std::string telemetry_base_url_;
-  std::unique_ptr<UrlRequestFactory> request_factory_;
-  std::string auth_token_;
-  base::Closure auth_closure_;
-  std::unique_ptr<UrlRequest> request_;
-
-  // Entries to be sent.
-  std::deque<ChromotingEvent> pending_entries_;
-
-  // Entries being sent.
-  // These will be pushed back to pending_entries if error occurs.
-  std::deque<ChromotingEvent> sending_entries_;
-
-  DISALLOW_COPY_AND_ASSIGN(TelemetryLogWriter);
-};
-
-}  // namespace remoting
-#endif  // REMOTING_SIGNALING_TELEMETRY_LOG_WRITER_H_