Summary:
SurfaceTelemetry data structure represents telemetry data associated with a particular running Surface. We need it to aggregate data from multiple mount transaction.
Changelog: [Internal] Fabric-specific internal change.
Reviewed By: sammy-SC
Differential Revision: D22490579
fbshipit-source-id: e087aa9bc236af4da7010d67941f9ac93ad6da97
