There were two different structures named RtpPacket in webrtc namespace: RtpPacket defined in fec_test_helper renamed to test::RawRtpPacket RtpPacket defined in rtp_sender_video and producer_fec removed as unused BUG=webrtc:5261 R=sprang@google.com, stefan@webrtc.org Review URL: https://codereview.webrtc.org/1710103004 . Cr-Commit-Position: refs/heads/master@{#11682}