Re: [streams] Delayed setting timeous to have better chances on slower systems. (#392)

Some additional information : the setTimeout callback is kicking too early sometimes on slow WebKit bots, leading to failing assertions.
Proposed changes make the tests more deterministic with that regards.

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Reply to this email directly or view it on GitHub:
https://github.com/whatwg/streams/pull/392#issuecomment-135736344