Cross Reference: /external/libcxx/test/algorithms/alg.sorting/alg.set.operations/set.difference

`Name`	`Date`	`Size`
Up to higher level directory
`Android.mk`	03-Dec-2014	`1.1K`
`set_difference.pass.cpp`	03-Dec-2014	`13K`
`set_difference_comp.pass.cpp`	03-Dec-2014	`13.2K`