Move logic for calculating needed bitrate overhead used by NACK and FEC to VideoSender.

webrtc/video/vie_encoder.h

 /*
  *  Copyright (c) 2012 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 66 matching lines @@
                                   uint8_t pl_type,
                                   bool internal_source);
   int32_t DeRegisterExternalEncoder(uint8_t pl_type);
   void SetEncoder(const VideoCodec& video_codec,
                   int min_transmit_bitrate_bps,
                   size_t max_data_payload_length);
 
   void EncodeVideoFrame(const VideoFrame& video_frame);
   void SendKeyFrame();
 
-  uint32_t LastObservedBitrateBps() const;
-  // Loss protection. Must be called before SetEncoder() to have max packet size
-  // updated according to protection.
-  // TODO(pbos): Set protection method on construction.
-  void SetProtectionMethod(bool nack, bool fec);
-
   // Implements VideoEncoderRateObserver.
+  // TODO(perkj): Refactor VideoEncoderRateObserver. This is only used for
+  // stats. The stats should be set in VideoSendStream instead.
+  // |bitrate_bps| is the target bitrate and |framerate| is the input frame
+  // rate so it has nothing to do with the actual encoder.
   void OnSetRates(uint32_t bitrate_bps, int framerate) override;
 
   // Implements EncodedImageCallback.
   int32_t Encoded(const EncodedImage& encoded_image,
                   const CodecSpecificInfo* codec_specific_info,
                   const RTPFragmentationHeader* fragmentation) override;
 
   // Implements VideoSendStatisticsCallback.
   void SendStatistics(uint32_t bit_rate,
                       uint32_t frame_rate,
@@ skipping 42 matching lines @@
   uint8_t picture_id_sli_ GUARDED_BY(data_cs_);
   bool has_received_rpsi_ GUARDED_BY(data_cs_);
   uint64_t picture_id_rpsi_ GUARDED_BY(data_cs_);
 
   bool video_suspended_ GUARDED_BY(data_cs_);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_VIDEO_VIE_ENCODER_H_