Platform dependent way of generating the seed for srand for simulations, so that they can be run in parallel.

The seed generated for Win won't be good enough to run the simulations in parallel.

R=pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/49829004

Cr-Commit-Position: refs/heads/master@{#9101}
1 file changed