Backport ChooserTarget package source check from N am: 82b9565bd1
am: 6d5f80d13b

* commit '6d5f80d13b06d439db08fcd5d25490edb322f923':
  Backport ChooserTarget package source check from N

Change-Id: Iec7902498e2cfe53ce16dc9faf2d91340f416799