Move logic for uploading logs into a ReportingService object.

components/metrics/metrics_upload_scheduler.h

 // Copyright 2017 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 COMPONENTS_METRICS_METRICS_UPLOAD_SCHEDULER_H_
 #define COMPONENTS_METRICS_METRICS_UPLOAD_SCHEDULER_H_
 
 #include "base/callback.h"
 #include "base/feature_list.h"
 #include "base/macros.h"
 #include "base/time/time.h"
 #include "components/metrics/metrics_scheduler.h"
 
 namespace metrics {
 
 extern const base::Feature kUploadSchedulerFeature;
 
-// Scheduler task to drive a MetricsService object's uploading.
+// Scheduler task to drive a ReportingService object's uploading.
 class MetricsUploadScheduler : public MetricsScheduler {
  public:
   // Creates MetricsUploadScheduler object with the given |upload_callback|
   // callback to call when uploading should happen.  The callback must
   // arrange to call either UploadFinished or UploadCancelled on completion.
   explicit MetricsUploadScheduler(const base::Closure& upload_callback);
   ~MetricsUploadScheduler() override;
 
   // Callback from MetricsService when a triggered upload finishes.
   void UploadFinished(bool server_is_healthy);
 
   // Callback from MetricsService when an upload is cancelled.
   // Also stops the scheduler.
   void StopAndUploadCancelled();
 
   // Callback from MetricsService when an upload is cancelled because it would
   // be over the allowed data usage cap.
   void UploadOverDataUsageCap();
 
  private:
-  // Record the upload interval time.
-  virtual void LogActualUploadInterval(base::TimeDelta interval);
-
-  // MetricsScheduler:
-  void TriggerTask() override;
-
-  // The tick count of the last time log upload has been finished and null if no
-  // upload has been done yet.
-  base::TimeTicks last_upload_finish_time_;
-
   // Time to wait between uploads on success.
   const base::TimeDelta unsent_logs_interval_;
 
   // Initial time to wait between upload retry attempts.
   const base::TimeDelta initial_backoff_interval_;
 
   // Time to wait for the next upload attempt if the next one fails.
   base::TimeDelta backoff_interval_;
 
   DISALLOW_COPY_AND_ASSIGN(MetricsUploadScheduler);
 };
 
 }  // namespace metrics
 
 #endif  // COMPONENTS_METRICS_METRICS_UPLOAD_SCHEDULER_H_