Summary:
## Changelog:
[Internal] -
Now that Performance API implementation is getting close to the final stage, it should be safe to replace the `global.performance` instance with the corresponding new implementation. This is done *only* if the actual native implementation is present, however (otherwise the behaviour will be exactly the same as before). Currently this is the case for all VR apps, Catalyst and very soon will be the case for fb4a/ios.
Reviewed By: cipolleschi
Differential Revision: D44057951
fbshipit-source-id: 7ccff4a4930175def69ef4d8a44335fbbd4a5df4