Fix stats for encoder target bitrate when target rate is zero.

webrtc/modules/video_coding/generic_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 41 matching lines @@
   bool internal_source_;
   EncodedImageCallback* const post_encode_callback_;
   media_optimization::MediaOptimization* const media_opt_;
 };
 
 class VCMGenericEncoder {
   friend class VCMCodecDataBase;
 
  public:
   VCMGenericEncoder(VideoEncoder* encoder,
-                    VideoEncoderRateObserver* rate_observer,
                     VCMEncodedFrameCallback* encoded_frame_callback,
                     bool internal_source);
   ~VCMGenericEncoder();
   int32_t Release();
   int32_t InitEncode(const VideoCodec* settings,
                      int32_t number_of_cores,
                      size_t max_payload_size);
   int32_t Encode(const VideoFrame& frame,
                  const CodecSpecificInfo* codec_specific,
                  const std::vector<FrameType>& frame_types);
 
   const char* ImplementationName() const;
 
   void SetEncoderParameters(const EncoderParameters& params);
   EncoderParameters GetEncoderParameters() const;
 
   int32_t SetPeriodicKeyFrames(bool enable);
   int32_t RequestFrame(const std::vector<FrameType>& frame_types);
   bool InternalSource() const;
   void OnDroppedFrame();
   bool SupportsNativeHandle() const;
 
  private:
   rtc::RaceChecker race_checker_;
 
   VideoEncoder* const encoder_ GUARDED_BY(race_checker_);
-  VideoEncoderRateObserver* const rate_observer_;
   VCMEncodedFrameCallback* const vcm_encoded_frame_callback_;
   const bool internal_source_;
   rtc::CriticalSection params_lock_;
   EncoderParameters encoder_params_ GUARDED_BY(params_lock_);
   bool is_screenshare_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_VIDEO_CODING_GENERIC_ENCODER_H_