Merge "Improve efficiency of using the DataSource abstraction."
am: 7353eabd14

* commit '7353eabd14cbfae2c123a58cae4ce1e770ee351d':
  Improve efficiency of using the DataSource abstraction.

Change-Id: Ia1ab6c7d0b94c59ab6d7b41828e8e5d676c212e5