On the way remove need for lock for rtp_sequence_number_map_ and timestamp_offset_. Change-Id: I21a5cbf6208620435a1a16fff68c33c0cb84f51d Bug: webrtc:11581 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/177424 Commit-Queue: Tommi <tommi@webrtc.org> Reviewed-by: Magnus Flodman <mflodman@webrtc.org> Cr-Commit-Position: refs/heads/master@{#31581}