CONSOLE MESSAGE: WebGL: CONTEXT_LOST_WEBGL: loseContext: context lost
Checks that a GPU process timeout on a result producing WebGL call will lose the context.
NOTE: This only passes in the test harness because it requires Internals.

PASS gl.isContextLost() is false
PASS gl.getError() is gl.NO_ERROR
PASS gl.isContextLost() is true
PASS gl.getError() is gl.CONTEXT_LOST_WEBGL
PASS val is [0, 0, 0, 0]
PASS successfullyParsed is true

TEST COMPLETE