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// 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 CONTENT_RENDERER_MEDIA_WEBRTC_TRACK_OBSERVER_H_
#define CONTENT_RENDERER_MEDIA_WEBRTC_TRACK_OBSERVER_H_
#include "base/callback.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/single_thread_task_runner.h"
#include "content/common/content_export.h"
#include "third_party/webrtc/api/mediastreaminterface.h"
namespace content {
class CONTENT_EXPORT TrackObserver {
public:
typedef base::Callback<void(webrtc::MediaStreamTrackInterface::TrackState)>
OnChangedCallback;
TrackObserver(const scoped_refptr<base::SingleThreadTaskRunner>& main_thread,
const scoped_refptr<webrtc::MediaStreamTrackInterface>& track);
~TrackObserver();
void SetCallback(const OnChangedCallback& callback);
const scoped_refptr<webrtc::MediaStreamTrackInterface>& track() const;
private:
class TrackObserverImpl;
const scoped_refptr<TrackObserverImpl> observer_;
DISALLOW_COPY_AND_ASSIGN(TrackObserver);
};
} // namespace content
#endif // CONTENT_RENDERER_MEDIA_WEBRTC_TRACK_OBSERVER_H_
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