pub(crate) trait MediaSessionMethods<D: DomTypes> {
// Required methods
fn GetMetadata(&self, _can_gc: CanGc) -> Option<DomRoot<D::MediaMetadata>>;
fn SetMetadata(&self, value: Option<&D::MediaMetadata>);
fn PlaybackState(&self) -> MediaSessionPlaybackState;
fn SetPlaybackState(&self, value: MediaSessionPlaybackState);
fn SetActionHandler(
&self,
action: MediaSessionAction,
handler: Option<Rc<MediaSessionActionHandler<D>>>,
);
fn SetPositionState(&self, state: &MediaPositionState) -> Fallible<()>;
}