Reason for revert: Breaks some h264 bitstream tests downstream. Reverting for now. Original issue's description: > Add pps id and sps id parsing to the h.264 depacketizer. > > BUG=webrtc:6208 > > Committed: https://crrev.com/abcc3de169d8896ad60e920e5677600fb3d40180 > Cr-Commit-Position: refs/heads/master@{#13838} TBR=sprang@webrtc.org,stefan@webrtc.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=webrtc:6208 Review-Url: https://codereview.webrtc.org/2265023002 Cr-Commit-Position: refs/heads/master@{#13844}