Add codec name to CodecSpecificInfo and get the codec name stats from there instead.

webrtc/video_encoder.h

 /*
  *  Copyright (c) 2014 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 171 matching lines @@
 
   int32_t Release() override;
   int32_t Encode(const VideoFrame& frame,
                  const CodecSpecificInfo* codec_specific_info,
                  const std::vector<FrameType>* frame_types) override;
   int32_t SetChannelParameters(uint32_t packet_loss, int64_t rtt) override;
 
   int32_t SetRates(uint32_t bitrate, uint32_t framerate) override;
   void OnDroppedFrame() override;
   bool SupportsNativeHandle() const override;
-  const char* ImplementationName() const override;
 
  private:
   bool InitFallbackEncoder();
 
   // Settings used in the last InitEncode call and used if a dynamic fallback to
   // software is required.
   VideoCodec codec_settings_;
   int32_t number_of_cores_;
   size_t max_payload_size_;
 
   // The last bitrate/framerate set, and a flag for noting they are set.
   bool rates_set_;
   uint32_t bitrate_;
   uint32_t framerate_;
 
   // The last channel parameters set, and a flag for noting they are set.
   bool channel_parameters_set_;
   uint32_t packet_loss_;
   int64_t rtt_;
 
   const EncoderType encoder_type_;
   webrtc::VideoEncoder* const encoder_;
 
   std::unique_ptr<webrtc::VideoEncoder> fallback_encoder_;
   std::string fallback_implementation_name_;
   EncodedImageCallback* callback_;
 };
 }  // namespace webrtc
 #endif  // WEBRTC_VIDEO_ENCODER_H_