and switch usages to ByteBufferWriter::Write
This is part of getting rid of "pointer + length" arguments.
Bug: webrtc:42225170
Change-Id: I65a9b9550868022c0eb1f63b547195dadfbea678
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/377461
Reviewed-by: Evan Shrubsole <eshr@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43916}