am 47b46648: am b8d890eb: Merge "Initial implementation of the download manager public API." into gingerbread

Merge commit '47b46648b5a9b8c518b96db37618fc49c5e5f2d1'

* commit '47b46648b5a9b8c518b96db37618fc49c5e5f2d1':
  Initial implementation of the download manager public API.