Don't assume all data2c input files are under net/instaweb.  Fixes breakage caused by r4483.
Don't assume all data2c input files are under net/instaweb.  Fixes breakage caused by r4483.
crowell/modpagespeed_tmp,crowell/modpagespeed_tmp,crowell/modpagespeed_tmp,crowell/modpagespeed_tmp,crowell/modpagespeed_tmp,crowell/modpagespeed_tmp,crowell/modpagespeed_tmp