Fix cpplint errors in common/mac/foundation_util.h
Fix cpplint errors in common/mac/foundation_util.h

lakshmi-srinivas/brightray,hokein/brightray,atom/brightray,paulcbetts/brightray,bbondy/brightray,bbondy/brightray,brave/brightray,tejaspathak/brightray,atom/brightray,paulcbetts/brightray,brave/brightray,lakshmi-srinivas/brightray,hokein/brightray,lakshmi-srinivas/brightray,deepak1556/brightray,deepak1556/brightray,tejaspathak/brightray