Tommi 384498abb5 Use sched_yield on all POSIX platforms in PlatformThread.
(not only MacOS)

This is a test to see if perf regressions we're seeing may be related to the use of nanosleep().

BUG=695438
TBR=solenberg@webrtc.org

Review-Url: https://codereview.webrtc.org/2716683002 .
Cr-Commit-Position: refs/heads/master@{#16807}
2017-02-23 19:23:19 +00:00
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