Deprecate VideoDecoder::Reset() and remove calls.

webrtc/modules/video_coding/codecs/vp8/vp8_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.
  *
  * WEBRTC VP8 wrapper interface
@@ skipping 118 matching lines @@
   int InitDecode(const VideoCodec* inst, int number_of_cores) override;
 
   int Decode(const EncodedImage& input_image,
              bool missing_frames,
              const RTPFragmentationHeader* fragmentation,
              const CodecSpecificInfo* codec_specific_info,
              int64_t /*render_time_ms*/) override;
 
   int RegisterDecodeCompleteCallback(DecodedImageCallback* callback) override;
   int Release() override;
-  int Reset() override;
 
   const char* ImplementationName() const override;
 
  private:
   // Copy reference image from this _decoder to the _decoder in copyTo. Set
   // which frame type to copy in _refFrame->frame_type before the call to
   // this function.
   int CopyReference(VP8DecoderImpl* copy);
 
   int DecodePartitions(const EncodedImage& input_image,
@@ skipping 13 matching lines @@
   int image_format_;
   vpx_ref_frame_t* ref_frame_;
   int propagation_cnt_;
   int last_frame_width_;
   int last_frame_height_;
   bool key_frame_required_;
 };  // end of VP8DecoderImpl class
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_VIDEO_CODING_CODECS_VP8_VP8_IMPL_H_