The San Francisco 49ers acquired offensive tackle Shon Coleman on August 31st last year, and although he did not play a single snap in 2018, he has earned himself a pay raise. His base salary in 2019 will rise from $755,280 to $2 million thanks to the proven performance escalator.
Just checked the NFLPA database, looks like OT Shon Coleman's base salary has increased to $2M, this is likely due to the Proven Performance Escalator clause for 3rd-7th rd picks. Even though he didn't play a down, he had enough play time with Cleveland to qualify.