Re: [web-bluetooth] Consider exposing whether a characteristic has notifications enabled.

If 2 pages are subscribed to notifications, and one of them calls 
[`stopNotifications()`](https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothremotegattcharacteristic-stopnotifications),
 that doesn't unsubscribe the other one, in the current specification.
 It's true that exposing descriptor access would give us a uniform API
 to read the state, and to control whether notifications or 
indications get enabled, but I think we'd still want to intercept uses
 of that descriptor to prevent pages from interfering with each other.

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Received on Wednesday, 23 March 2016 18:52:41 UTC