MFC r288006,r288031,r288032,r288033:

r288006 (by rodrigc):

Add declarations to eliminate -Wmissing-prototypes warnings

r288031 (by rodrigc):

Remove names from some prototypes

r288032 (by rodrigc):

Remove names from some prototypes

r288033 (by rodrigc):

Use ANSI C prototypes. Eliminates -Wold-style-definition warnings.