1 Verifies the contents of the RENDERER and VENDOR strings to avoid regressions.
3 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
5 PASS gl.getParameter(gl.RENDERER) is "WebKit WebGL"
6 PASS gl.getParameter(gl.VENDOR) is "WebKit"
7 PASS successfullyParsed is true