GLESv2 support will come in a followup change but will take advantage
of the GLClientState changes.
Change-Id: Ib6cbb4dafbd071e3b59b1e5d808b3e23656ada92
The modules here are only built when BUILD_EMULATOR_OPENGL is defined to true
in your environment or your BoardConfig.mk (see tools/emulator/opengl/Android.mk)
Change-Id: I5f32c35b4452fb5a7b4d5f9fc5870ec1da6032e6