The Collaborative International Dictionary of English v.0.48:

Chrome \Chrome\ (kr[=o]m), v. t. [imp. & p. p. Chromed
   (kr[=o]md); p. pr. & vb. n. Chroming.] [From Chrome, n.]
   To treat with a solution of potassium bichromate, as in
   dyeing.
   [Webster 1913 Suppl.]