am 00e9db5d: am b23a35a3: am ba84a04a: Merge "docs: update javadocs for gms and gcm" into jb-mr1-dev

# Via Android Git Automerger (2) and others
* commit '00e9db5d927e1c725665159f6b5c15e0c33a4c1b':
  docs: update javadocs for gms and gcm