Fix more swarming test failures by using the fake clock or longer timeout.
In the swarming test, the machines sometimes were blocked for 1-2 seconds without processing anything.
This CL makes sure that 1 second timeout is only used with fake clock.

BUG=webrtc:6500

Review-Url: https://codereview.webrtc.org/2442813002
Cr-Original-Commit-Position: refs/heads/master@{#14756}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: e58d73d23ea7d3338c3b4617943224f9c71a2612
2 files changed