chromium/third_party/blink/renderer/modules/mediasource/same_thread_media_source_tracer.h

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASOURCE_SAME_THREAD_MEDIA_SOURCE_TRACER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASOURCE_SAME_THREAD_MEDIA_SOURCE_TRACER_H_

#include "third_party/blink/renderer/core/html/media/media_source_tracer.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/heap/member.h"

namespace blink {

class HTMLMediaElement;
class MediaSource;

// Concrete MediaSourceTracer that enables an HTMLMediaElement and its attached
// MediaSource on the same (main) thread to trace into each other. This enables
// garbage collection to automatically detect and collect idle attachments of
// these objects that have no other strong references. Concrete
// MediaSourceAttachments use SameThreadMediaSourceTracers as the authoritative
// reference holders for each side of the attachments.
class SameThreadMediaSourceTracer final : public MediaSourceTracer { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASOURCE_SAME_THREAD_MEDIA_SOURCE_TRACER_H_