decoders implementation.

modules/libimg/public/MANIFEST

@@ -2,9 +2,6 @@
 # This is a list of local files which get copied to the mozilla:dist:libimg directory
 #
 
-MIMGCB.h
-MIMGCBIF.h
-MPSIMGCB.h
 dummy_nc.h
 ilIImageRenderer.h
 ilINetContext.h
@@ -16,4 +13,4 @@ il_strm.h
 il_types.h
 il_util.h
 libimg.h
-ni_pixmp.h
+ni_pixmp.h