Rename the desktop OpenGL namespace to gl. Bug 18962347 Change-Id: I0bb263b749d3af3362b2fdc02d81ab856e0f46b4 Reviewed-on: https://swiftshader-review.googlesource.com/1770 Reviewed-by: Nicolas Capens <capn@google.com> Tested-by: Nicolas Capens <capn@google.com>