This would allow us to limit the visibility of RtpPacketReceived and RtpPacketToSend, when we only want to allocate memory to save the RTP header, and not the metadata.
TBR=danilchap@webrtc.org
Bug: webrtc:8111
Change-Id: Ic9339189ccc2081d82bdc8def0fb39677458356f
Reviewed-on: https://webrtc-review.googlesource.com/5521
Commit-Queue: Elad Alon <eladalon@webrtc.org>
Reviewed-by: Björn Terelius <terelius@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20075}