am 5a862fcb: Update refs to DownloadManager, which moved to android.app

Merge commit '5a862fcbbd5672fb85aa2f48d963a2dd4d1da940' into gingerbread-plus-aosp

* commit '5a862fcbbd5672fb85aa2f48d963a2dd4d1da940':
  Update refs to DownloadManager, which moved to android.app