am c004a0c9: am 05e13b9e: am c1ded373: Merge "Revert "Use pread() to get the decrypted data for container based DRM file."" into honeycomb-mr2

* commit 'c004a0c925ea2c9c48bbf9670d2ebf96f432c90a':
  Revert "Use pread() to get the decrypted data for container based DRM file."