Add jank CUJ instrumentation to DialogLaunchAnimator

Instrument the Internet connection dialog as an initial proof of concept.

Bug: 232908404
Test: Unit tests
Test: Example trace: https://ui.perfetto.dev/#!/?s=4b4d4d463d2ec6c86fb5186dd4a4724d1ef66ea39f4379f1ddb9d8775c514
Change-Id: I1e68104d81b58465d68591e9974a57138cba0c18