Why crazy? They do list every .. folder (and call them 'repositories'), which is probably stupid. But

https://github.com/shil99/android_test/tree/master/external/...

literally has their name in the path/package name, so it isn't crazy (unless you know more?) to believe that this was stolen/reverse engineered Symantec code, no? At LEAST it's a very confusing and misleading directory tree for a random repository?

Files below src/ should be sources, not a 3rd party Symantec lib or whatever, so I'd give them the benefit of the doubt here.

What android source code? It's a repos called android_test of some user.

This seems to have been the main factor - com/symantec/mobilesecurity - in the code.