Reason for revert: Disabling tests on memcheck that time out due to using real VP8 encoders. Original issue's description: > Revert of Don't send FEC for H.264 with NACK enabled. (patchset #5 id:80001 of https://codereview.webrtc.org/1687303002/ ) > > Reason for revert: > Broke the VerifyHistogramStatsWithRed test on the Windows DrMemory Full bot and Linux Memcheck bot. Please fix the test and reland. > > Original issue's description: > > Don't send FEC for H.264 with NACK enabled. > > > > The H.264 does not contain picture IDs and are not sufficient to > > determine that a packet may be skipped. This causes retransmission > > requests for FEC that are currently dropped by the sender (since they > > should be redundant). > > > > The receiver is then unable to continue without having the packet gap > > filled (unlike VP8/VP9 which moves on since it has a consecutive stream > > of picture IDs). > > > > Even if FEC retransmission did work it's a huge waste of bandwidth, > > since it just adds additional overhead that has to be unconditionally > > transmitted. This bandwidth is better used to send higher-quality > > frames. > > > > BUG=webrtc:5264 > > R=stefan@webrtc.org > > > > Committed: https://crrev.com/25558ad819b4df41ba51537e26a77480ace1e525 > > Cr-Commit-Position: refs/heads/master@{#11601} > > TBR=stefan@webrtc.org,pbos@webrtc.org > # Skipping CQ checks because original CL landed less than 1 days ago. > NOPRESUBMIT=true > NOTREECHECKS=true > NOTRY=true > BUG=webrtc:5264 > > Committed: https://crrev.com/29ffdc1a15e31bd81e806ff135c2100d811714f0 > Cr-Commit-Position: refs/heads/master@{#11607} TBR=stefan@webrtc.org,deadbeef@webrtc.org # Not skipping CQ checks because original CL landed more than 1 days ago. BUG=webrtc:5264 Review URL: https://codereview.webrtc.org/1697093002 . Cr-Commit-Position: refs/heads/master@{#11621}