am 98e26575: Merge "Add Backup/Restore sample to the SDK docs" into froyo

Merge commit '98e26575373461dc16c749d1f756403e46a909d4' into froyo-plus-aosp

* commit '98e26575373461dc16c749d1f756403e46a909d4':
  Add Backup/Restore sample to the SDK docs