This is a pure move/rename. The reason for wanting the tests in RTPVideoHeader is that it is the GetAsMetadata() function that we are testing and in a future CL we'll also want to test SetFromMetadata(). // Bots green, no need to wait for the remaining ones, just a move NOTRY=True Bug: webrtc:14709 Change-Id: Iecb938e79e7e8d55e208baea190eef4c6730158e Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/285460 Commit-Queue: Henrik Boström <hbos@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#38764}