chromium/content/browser/renderer_host/media/media_stream_provider.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// MediaStreamProvider is used to capture media of the types defined in
// MediaStreamType. There is only one MediaStreamProvider instance per media
// type and a MediaStreamProvider instance can have only one registered
// listener.
// The MediaStreamManager is expected to be called on Browser::IO thread and
// the listener will be called on the same thread.

#ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_PROVIDER_H_
#define CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_PROVIDER_H_

#include "base/memory/ref_counted.h"
#include "base/unguessable_token.h"
#include "third_party/blink/public/common/mediastream/media_stream_request.h"

namespace content {

enum MediaStreamProviderError { … };

// Callback class used by MediaStreamProvider.
class MediaStreamProviderListener { … };

// Implemented by a manager class providing captured media.
class MediaStreamProvider
    : public base::RefCountedThreadSafe<MediaStreamProvider> { … };

}  // namespace content

#endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_PROVIDER_H_