Intermittent pass in /_webgl/conformance/ogles/GL/cos/cos_001_to_006.html and /_webgl/conformance/ogles/GL/sin/sin_001_to_006.html and /_webgl/conformance/ogles/GL/acos/acos_001_to_006.html

This just means that the test ran fast enough to actually complete before the timeout is reached for once.