audio_coding: remove "main" directory

webrtc/modules/audio_coding/main/test/SpatialAudio.h

-/*
- *  Copyright (c) 2011 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.
- */
-
-#ifndef WEBRTC_MODULES_AUDIO_CODING_MAIN_TEST_SPATIALAUDIO_H_
-#define WEBRTC_MODULES_AUDIO_CODING_MAIN_TEST_SPATIALAUDIO_H_
-
-#include "webrtc/base/scoped_ptr.h"
-#include "webrtc/modules/audio_coding/main/include/audio_coding_module.h"
-#include "webrtc/modules/audio_coding/main/test/ACMTest.h"
-#include "webrtc/modules/audio_coding/main/test/Channel.h"
-#include "webrtc/modules/audio_coding/main/test/PCMFile.h"
-#include "webrtc/modules/audio_coding/main/test/utility.h"
-
-#define MAX_FILE_NAME_LENGTH_BYTE 500
-
-namespace webrtc {
-
-class SpatialAudio : public ACMTest {
- public:
-  SpatialAudio(int testMode);
-  ~SpatialAudio();
-
-  void Perform();
- private:
-  int16_t Setup();
-  void EncodeDecode(double leftPanning, double rightPanning);
-  void EncodeDecode();
-
-  rtc::scoped_ptr<AudioCodingModule> _acmLeft;
-  rtc::scoped_ptr<AudioCodingModule> _acmRight;
-  rtc::scoped_ptr<AudioCodingModule> _acmReceiver;
-  Channel* _channel;
-  PCMFile _inFile;
-  PCMFile _outFile;
-  int _testMode;
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_MODULES_AUDIO_CODING_MAIN_TEST_SPATIALAUDIO_H_