With this CL, all tests and tools under the neteq/ folder are converted to use RTPHeader instead of WebRtcRTPHeader. WebRtcRTPHeader has an RTPHeader as a member. None of the other member in WebRtcRTPHeader where used. TBR=kjellander@webrtc.org CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_chromium_compile_rel_ng,linux_chromium_compile_dbg_ng BUG=webrtc:7467 Review-Url: https://codereview.webrtc.org/2809153002 Cr-Commit-Position: refs/heads/master@{#17845}