Cross Reference: /cts/tests/openglperf2/src/android/opengl2/cts/reference

`Name`	`Date`	`Size`
Up to higher level directory
`GLGameActivity.java`	21-Aug-2018	`6.2K`
`GLReferenceActivity.java`	21-Aug-2018	`2.7K`
`GLReferenceBenchmark.java`	21-Aug-2018	`3.4K`