am 3356ba35: Merge "Add Backup/Restore sample to the SDK docs" into froyo

Merge commit '3356ba35fa7632fc801210f46d3ec10d1b6cf6a1' into froyo-plus-aosp

* commit '3356ba35fa7632fc801210f46d3ec10d1b6cf6a1':
  Add Backup/Restore sample to the SDK docs