Function places::storage::history::history_sync::apply_synced_visits

pub fn apply_synced_visits(
    db: &PlacesDb, 
    incoming_guid: &SyncGuid, 
    url: &Url, 
    title: &Option<String>, 
    visits: &[HistoryRecordVisit]
) -> Result<()>

Apply history visit from sync. This assumes they have all been validated, deduped, etc - it's just the storage we do here.