Sends messages to the embedder.

The port that the embedder receives messages on.

Filter for file selection; the String content is expected to be extension (e.g, “doc”, without the prefixing “.”)

https://w3c.github.io/mediasession/#mediametadata

https://w3c.github.io/mediasession/#dictdef-mediapositionstate

Enums

A cursor for the window. This is different from a CSS cursor (see CursorKind) in that it has no Auto value.

Type of events sent from script to the embedder about the media session.

https://w3c.github.io/mediasession/#enumdef-mediasessionplaybackstate

Enum with variants that match the DOM PermissionName enum

Information required to display a permission prompt

Status for prompting user for permission.

Constants