3fe69c504c
Goal is to make PeerConnectionInterface methods pure virtual. This is a split of cl https://webrtc-review.googlesource.com/c/src/+/340143 in order to be able to fix Chromium test RTCPeerConnectionHandlerTest.OnRenegotiationNeeded Bug: none Change-Id: I5eac4d9a96c1b594c9e2b3505ef2466046065dc8 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/340481 Auto-Submit: Per Kjellander <perkj@webrtc.org> Commit-Queue: Harald Alvestrand <hta@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#41798}