Creating the audio_modem component

components/copresence/mediums/audio/audio_manager.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_MEDIUMS_AUDIO_AUDIO_MANAGER_H_
-#define COMPONENTS_COPRESENCE_MEDIUMS_AUDIO_AUDIO_MANAGER_H_
-
-#include <string>
-
-#include "base/callback.h"
-#include "components/copresence/public/copresence_constants.h"
-
-namespace copresence {
-
-class WhispernetClient;
-
-class AudioManager {
- public:
-  virtual ~AudioManager() {}
-
-  // Initializes the object. Do not use this object before calling this method.
-  virtual void Initialize(WhispernetClient* whispernet_client,
-                          const TokensCallback& tokens_cb) = 0;
-
-  virtual void StartPlaying(AudioType type) = 0;
-  virtual void StopPlaying(AudioType type) = 0;
-
-  virtual void StartRecording(AudioType type) = 0;
-  virtual void StopRecording(AudioType type) = 0;
-
-  virtual void SetToken(AudioType type,
-                        const std::string& url_safe_token) = 0;
-
-  virtual const std::string GetToken(AudioType type) = 0;
-
-  virtual bool IsPlayingTokenHeard(AudioType type) = 0;
-
-  virtual void SetTokenLength(AudioType type, size_t token_length) = 0;
-};
-
-}  // namespace copresence
-
-#endif  // COMPONENTS_COPRESENCE_MEDIUMS_AUDIO_AUDIO_MANAGER_H_