Cross Reference: /frameworks/base/packages/DocumentsUI/src/com/android/documentsui/model

`Name`	`Date`	`Size`
Up to higher level directory
`DocumentInfo.java`	06-Dec-2013	`9K`
`DocumentStack.java`	06-Dec-2013	`4.2K`
`Durable.java`	06-Dec-2013	`934`
`DurableUtils.java`	06-Dec-2013	`3.1K`
`RootInfo.java`	06-Dec-2013	`7.3K`