Don't?
Hold the button down?

I know the temptation is strong, but you probably wont be happy with the texturized final product. It will draw your eye. Shiny paint will make it worse.

Around here you can tell which bikes are stolen. They have that one-color ghetto respray job on the frame and almost everything attached to it, except the tires.

If you scuff chrome with fine sandpaper or a Scotchbrite pad (like a green pot scrubber, or the gnarly pad they use on polishers to strip floorwax), then primer and paint, adhesion should be pretty good.
I have a pair of cruiser fenders that have chrome that's gotten too rusty to save, and they are going to get the above treatment, then a few coats of white spraypaint and clear.