Currently I use the flowing steps to view an arbitrary XHProf profile in the #xhprof application. (I didn't actually realize that this was possible)
# Upload the profile as a file.
# Use `phid.lookup` to get the file PHID.
# Navigate to `/xhprof/profile/$PHID/`
It would be nice if files could be uploaded directly to XHProf via drag-and-drop.