am 6602ade6: am ed1c148d: am 3d57823a: am 8a72b6e0: Doc change: Remove more proto scheme from src urls (to fix mixed content warnings).

# Via Android Git Automerger (3) and Dirk Dougherty (1)
* commit '6602ade615ce5ad206722b3c3ffac955078a9cc7':
  Doc change: Remove more proto scheme from src urls (to fix mixed content warnings).