For the other code in PlayerView, we use <code>this.playingBlob</code> so that we know playingBlob is the member of PlayerView, if we want to sync with the existing code, probably we can change <code>PlayerView.playingBlob</code> to <code>this.playingBlob</code>, and bind "this" when we assigning the mozNfc.onpeerready handler, like:
```JavaScript
navigator.mozNfc.onpeerready = this.handlePeerConnectivity.bind(this);
```
I am fine with PlayerView.playingBlob, though.