Cross Reference: /external/chromium_org/ash/system/logout_button

`Name`	`Date`	`Size`
Up to higher level directory
`logout_button_observer.h`	06-Dec-2013	`762`
`tray_logout_button.cc`	06-Dec-2013	`5.8K`
`tray_logout_button.h`	06-Dec-2013	`1.3K`