1170597 - Debounce syncs on a per-synchronizer basis

Status: NEW

(Firefox for iOS :: Sync, defect)

Description

[Richard Newman [:rnewman]]

Right now there's nothing to stop a user syncing, say, tabs or history twice in a few seconds.

We should track a last sync time for each synchronizer, and return with a pseudo-success if we're synced again within a short interval.

This doesn't have to be persisted. Ideally it will be a relative time, not a wall clock time.