Cross Reference: /prebuilts/go/darwin-x86/misc/swig/callback

`Name`	`Date`	`Size`
Up to higher level directory
`callback.cc`	21-Aug-2018	`388`
`callback.go`	21-Aug-2018	`267`
`callback.h`	21-Aug-2018	`529`
`callback.swigcxx`	21-Aug-2018	`374`
`callback_test.go`	21-Aug-2018	`673`