The corresponding implementation on the blink layer based on the w3c api change, which is to add the `ChapterInformation` attribute in the existing `MediaMetadata`. ThisChapterInformation applies to audio as well as video, since MediaSession is for both audio and video. See the propose: https://github.com/w3c/mediasession/issues/273 And the specs change pr: https://github.com/w3c/mediasession/pull/308
Video chapters allow viewers to quickly jump to a specific section of a video or rewatch a particular part. The current MediaMetadata does not include any data about chapter information. This project will add it to the MediaMetadata.
Samples: https://googlechrome.github.io/samples/media-session/video.html