This makes it clearer which code actually depends on the RelayPort
class.
Bug: None
Change-Id: I7b88de1824d5b5832d2f35a8820c5c59d05441c2
Reviewed-on: https://webrtc-review.googlesource.com/100801
Reviewed-by: Qingsi Wang <qingsi@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24768}