Backport ChooserTarget package source check from N
am: 82b9565bd1

* commit '82b9565bd13e2c5dac20b3221b7be28c5afe57ea':
  Backport ChooserTarget package source check from N

Change-Id: Ic7e4a8e80829ccb0b2f60c572eea15d18d6658ec