Re: [streams-tests] Update WritableStream tests (#4587)

Rebased and squashed. Old commit is f5c2f755bce917563d30c31be91838f28736a578.


View on GitHub: https://github.com/w3c/web-platform-tests/pull/4587#issuecomment-275023976

Received on Wednesday, 25 January 2017 05:38:13 UTC