Make variable for selecting if intervals without samples should be included in stats configurable (…

webrtc/video/stats_counter.h

 /*
  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 173 matching lines @@
 
 // RateCounter: units per second
 //
 //           | *      *      *      | *           *       | ...
 //           | Add(5) Add(1) Add(6) | Add(5)      Add(5)  |
 //           |<------ 2 sec ------->|                     |
 // GetMetric | (5 + 1 + 6) / 2      | (5 + 5) / 2         |
 //
 class RateCounter : public StatsCounter {
  public:
-  RateCounter(Clock* clock, StatsCounterObserver* observer);
+  RateCounter(Clock* clock,
+              StatsCounterObserver* observer,
+              bool include_empty_intervals);
   ~RateCounter() override {}
 
   void Add(int sample);
 
  private:
   bool GetMetric(int* metric) const override;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(RateCounter);
 };
 
 // RateAccCounter: units per second (used for counters)
 //
 //           | *      *      *      | *         *         | ...
 //           | Set(5) Set(6) Set(8) | Set(11)   Set(13)   |
 //           |<------ 2 sec ------->|                     |
 // GetMetric | 8 / 2                | (13 - 8) / 2        |
 //
 class RateAccCounter : public StatsCounter {
  public:
-  RateAccCounter(Clock* clock, StatsCounterObserver* observer);
+  RateAccCounter(Clock* clock,
+                 StatsCounterObserver* observer,
+                 bool include_empty_intervals);
   ~RateAccCounter() override {}
 
   void Set(int sample);
 
  private:
   bool GetMetric(int* metric) const override;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(RateAccCounter);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_VIDEO_STATS_COUNTER_H_