Hi @monkeykasai, thanks for getting in touch. I am afraid that streaming VR is still only supported by selected headset models, none of which currently include Tobii Eye Tracking technology, but the idea is cool and hopefully in the future the headset manufactures can provide the means to do this.
I saw this streaming guide online @ https://www.youtube.com/watch?v=gSCJtQMHZ4w which does include the HTC Vive, so if you have development skills you might be able to get streaming up and running and thereafter include the Eye Gaze Stream using our Unity SDK. However, this is still quite far from seeing in-game footage as you requested.