The negotiation of encrypted header extensions has already been enabled in Chromium, https://chromium-review.googlesource.com/c/chromium/src/+/5933829. Hence, it make sense to enable the encryption of header extensions by default also in webRTC environment so that all the tests run by taking this into considiration when new changes are made. Bug: webrtc:358039777 Change-Id: I141fac01b0eb0f2ce5a0a365736f0dcf9f21ddcd Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/366420 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Emil Vardar (xWF) <vardar@google.com> Reviewed-by: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/main@{#43573}