You're right kiwi, we've all seen chrome chip, especially those of us who were unfortunate to get those faulty blades from Ultima a few years ago, and whose pro shop said "sure, we can send those blades back to Ultima to look at for you ... via a slow boat ... and there aren't any replacement blades for your boots until they reply ... but sure we can send them back". (Bitter? Me??) I wore those blades out in the end, and the peeling chrome didn't make any difference to the blade except for looking ugly.
As long as you're confident the damage is only cosmetic, then I can't see any reason to leave them. My concern is that from your description the "chrome chip" might extend across the pick, and it's the bottom (aka important) pick.