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

webrtc/modules/video_coding/video_coding_impl.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 95 matching lines @@
   bool frame_dropper_enabled_ GUARDED_BY(encoder_crit_);
   VCMProcessTimer _sendStatsTimer;
 
   // Must be accessed on the construction thread of VideoSender.
   VideoCodec current_codec_;
   rtc::SequencedTaskChecker sequenced_checker_;
 
   rtc::CriticalSection params_crit_;
   EncoderParameters encoder_params_ GUARDED_BY(params_crit_);
   bool encoder_has_internal_source_ GUARDED_BY(params_crit_);
-  std::string encoder_name_ GUARDED_BY(params_crit_);
   std::vector<FrameType> next_frame_types_ GUARDED_BY(params_crit_);
 };
 
 class VideoReceiver : public Module {
  public:
   typedef VideoCodingModule::ReceiverRobustness ReceiverRobustness;
 
   VideoReceiver(Clock* clock,
                 EventFactory* event_factory,
                 EncodedImageCallback* pre_decode_image_callback,
@@ skipping 75 matching lines @@
   VCMProcessTimer _receiveStatsTimer;
   VCMProcessTimer _retransmissionTimer;
   VCMProcessTimer _keyRequestTimer;
   QpParser qp_parser_;
   ThreadUnsafeOneTimeEvent first_frame_received_;
 };
 
 }  // namespace vcm
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_VIDEO_CODING_VIDEO_CODING_IMPL_H_