Cross Reference: /frameworks/base/docs/html/images/training/snackbar

`Name`	`Date`	`Size`
Up to higher level directory
`snackbar_button_move.mp4`	21-Oct-2016	`29.3K`
`snackbar_drive.png`	21-Oct-2016	`357.5K`
`snackbar_drive_2x.png`	21-Oct-2016	`1.3M`
`snackbar_undo_action.png`	21-Oct-2016	`126.3K`
`snackbar_undo_action_2x.png`	21-Oct-2016	`465.7K`