Summary:
This event listener does nothing by default and will do nothing if (developer) users don't explicitly create some telemetry system for their own app.
This EventEmitter makes that easier but isn't necessarily tied to telemetry, especially since it does nothing at all by default.
Changelog: [Internal]
Reviewed By: yungsters
Differential Revision: D34060116
fbshipit-source-id: 9345a52f502e0225358fdaa1431c052a70fa54ce
Joshua Gross
271b9132bc