Reason for revert: breaks Win64 bots compile Original issue's description: > Fix crash parsing malformed rtp packet > where header extesnsion size mismatch expected. > > BUG=chromium:620242 > R=asapersson@webrtc.org > > Committed: https://crrev.com/5a45fe6fd7a509fb4c3a9b09cdbd2278055f1d4c > Cr-Commit-Position: refs/heads/master@{#13170} TBR=asapersson@webrtc.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=chromium:620242 Review-Url: https://codereview.webrtc.org/2074763002 Cr-Commit-Position: refs/heads/master@{#13171}