Declare the "pd" argument to be "const guchar *", to match the way
packet data is declared elsewhere, and so that if the headers
"capture_info.c" includes don't define "u_char" it still compiles.
svn path=/trunk/; revision=16671
This way, the capture child don't need to now any of the packet_counter things (no epan/packet.h and all alike).
Currently the capture_info code will always open another wiretap file instance to build it's own counter values. This isn't optimized for now (next step: use data from cf_continue_tail() somehow).
svn path=/trunk/; revision=16669