Move AudioDecoder and related stuff to the api/ directory

webrtc/modules/audio_coding/neteq/tools/neteq_test.cc

 /*
  *  Copyright (c) 2016 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.
  */
 
 #include "webrtc/modules/audio_coding/neteq/tools/neteq_test.h"
 
 #include <iostream>
 
-#include "webrtc/modules/audio_coding/codecs/builtin_audio_decoder_factory.h"
+#include "webrtc/api/audio_codecs/builtin_audio_decoder_factory.h"
 
 namespace webrtc {
 namespace test {
 
 void DefaultNetEqTestErrorCallback::OnInsertPacketError(
     int error_code,
     const NetEqInput::PacketData& packet) {
   if (error_code == NetEq::kUnknownRtpPayloadType) {
     std::cerr << "RTP Payload type "
               << static_cast<int>(packet.header.header.payloadType)
@@ skipping 101 matching lines @@
         neteq_->RegisterExternalDecoder(c.second.decoder, c.second.codec,
                                         c.second.codec_name, c.first),
         NetEq::kOK)
         << "Cannot register " << c.second.codec_name << " to payload type "
         << c.first;
   }
 }
 
 }  // namespace test
 }  // namespace webrtc