Creating the audio_modem component

components/copresence/test/audio_test_support.h

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef COMPONENTS_COPRESENCE_TEST_AUDIO_TEST_SUPPORT_H_
-#define COMPONENTS_COPRESENCE_TEST_AUDIO_TEST_SUPPORT_H_
-
-#include <cstddef>
-
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-
-namespace media {
-class AudioBus;
-class AudioBusRefCounted;
-}
-
-namespace copresence {
-
-// Populate random samples given a random seed into the samples array.
-void PopulateSamples(unsigned int random_seed, size_t size, float* samples);
-
-// Create an ref counted audio bus populated with random samples.
-scoped_refptr<media::AudioBusRefCounted>
-    CreateRandomAudioRefCounted(int random_seed, int channels, int samples);
-
-}  // namespace copresence
-
-#endif  // COMPONENTS_COPRESENCE_TEST_AUDIO_TEST_SUPPORT_H_