This test runs the WebGL Test listed below in an iframe and reports PASS or FAIL.

Test: ../../../resources/webgl_test_files/deqp/functional/gles3/shaderpackingfunction.html
[ 1: FAIL ] pack_unpack.packsnorm2x16_lowp_vertex: bindBuffer
[ 2: FAIL ] pack_unpack.packsnorm2x16_lowp_fragment: Result comparison failed
[ 3: FAIL ] pack_unpack.packsnorm2x16_mediump_vertex: bindBuffer
[ 4: FAIL ] pack_unpack.packsnorm2x16_mediump_fragment: Result comparison failed
[ 5: FAIL ] pack_unpack.packsnorm2x16_highp_vertex: bindBuffer
[ 6: FAIL ] pack_unpack.packsnorm2x16_highp_fragment: Result comparison failed
[ 7: FAIL ] pack_unpack.unpacksnorm2x16_vertex: bindBuffer
[ 8: FAIL ] pack_unpack.unpacksnorm2x16_fragment: Result comparison failed
[ 9: FAIL ] pack_unpack.packunorm2x16_lowp_vertex: bindBuffer
[ 10: FAIL ] pack_unpack.packunorm2x16_lowp_fragment: Result comparison failed
[ 11: FAIL ] pack_unpack.packunorm2x16_mediump_vertex: bindBuffer
[ 12: FAIL ] pack_unpack.packunorm2x16_mediump_fragment: Result comparison failed
[ 13: FAIL ] pack_unpack.packunorm2x16_highp_vertex: bindBuffer
[ 14: FAIL ] pack_unpack.packunorm2x16_highp_fragment: Result comparison failed
[ 15: FAIL ] pack_unpack.unpackunorm2x16_vertex: bindBuffer
[ 16: FAIL ] pack_unpack.unpackunorm2x16_fragment: Result comparison failed
[ 17: FAIL ] pack_unpack.packhalf2x16_vertex: bindBuffer
[ 18: FAIL ] pack_unpack.packhalf2x16_fragment: Result comparison failed
[ 19: FAIL ] pack_unpack.unpackhalf2x16_vertex: bindBuffer
[ 20: FAIL ] pack_unpack.unpackhalf2x16_fragment: Result comparison failed
[ 21: PASS ] pack_unpack.unpackhalf2x16_fragment: successfullyParsed is true
[ FAIL ] 20 failures reported