ObjC: Implement HW codecs in ObjC instead of C++

webrtc/sdk/objc/Framework/Classes/PeerConnection/RTCVideoCodec+Private.h

 /*
  *  Copyright 2017 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 11 matching lines @@
 @interface RTCEncodedImage ()
 
 - (instancetype)initWithNativeEncodedImage:(webrtc::EncodedImage)encodedImage;
 - (webrtc::EncodedImage)nativeEncodedImage;
 
 @end
 
 @interface RTCVideoEncoderSettings ()
 
 - (instancetype)initWithNativeVideoCodec:(const webrtc::VideoCodec *__nullable)videoCodec;
-- (std::unique_ptr<webrtc::VideoCodec>)createNativeVideoEncoderSettings;
 
 @end
 
 @interface RTCCodecSpecificInfoH264 ()
 
 - (webrtc::CodecSpecificInfo)nativeCodecSpecificInfo;
 
 @end
 
 @interface RTCRtpFragmentationHeader ()
 
 - (instancetype)initWithNativeFragmentationHeader:
         (const webrtc::RTPFragmentationHeader *__nullable)fragmentationHeader;
 - (std::unique_ptr<webrtc::RTPFragmentationHeader>)createNativeFragmentationHeader;
 
 @end
 
 @interface RTCVideoCodecInfo ()
 
 - (instancetype)initWithNativeVideoCodec:(cricket::VideoCodec)videoCodec;
 - (cricket::VideoCodec)nativeVideoCodec;
 
 @end
 
 NS_ASSUME_NONNULL_END