(Note: need input from Anton / Mounir)

For background, please see the master tracking bug for Media Router UI v1.5 and associated bugs: crbug.com/684642


1) Define a "standard" media controller API in Mojo. The set of operations should cover the following (though we may define additional operations as needed):

Mute / unmute
Volume
Play / Pause
Seek

2) Define MediaStatus struct which serves as a base class containing the following metadata about a media content:

Name
Status (string)
CanSeek
Position
Duration
Playing / Paused
Volume
IsMuted

3) Define a MediaStatusObserver API to listen for MediaStatus updates.


These should be in media namespace/directory - this will allow reuse by other media projects (such as remote playback).