The test doesn't really care about the order; the fact that it relied on a specific order was just an implementation detail. However, this made the test flaky since race conditions sometimes determine the order. It also made it frustrating to add new tests. BUG=webrtc:5930 R=pthatcher@webrtc.org Review URL: https://codereview.webrtc.org/2006263004 . Cr-Commit-Position: refs/heads/master@{#12936}