This is done to solve a dependency-cycle with the RtcEventLog - now the RtcEventLog can depend on the config part of ANA, and be able to peer inside, while the implementation part of ANA can invoke the RtcEventLog. BUG=webrtc:8111 TBR=stefan@webrtc.org Review-Url: https://codereview.webrtc.org/3010343002 Cr-Commit-Position: refs/heads/master@{#19793}