This reverts commit 7325bc3917e6dd4c92e7a18fd879ba91f0b2851f. Reason for revert: FecTest.UlpfecTest is consistently failing. Original change's description: > Refactor FEC code to use COW buffers > > This refactoring helps to reduce unnecessary memcpy calls on the receive > side. > > This CL is the first stage of refactoring: it only replaces > |uint8 data[IP_PACKET_SIZE]| with |rtc::CopyOnWriteBuffer data| and does > necessary changes. > > A follow-up CL will remove length field of the Packet class. > > > Bug: webrtc:10750 > Change-Id: Ie233da83ff33f6370f511955e4c65d59522389a7 > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/144881 > Reviewed-by: Artem Titov <titovartem@webrtc.org> > Reviewed-by: Stefan Holmer <stefan@webrtc.org> > Reviewed-by: Rasmus Brandt <brandtr@webrtc.org> > Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org> > Cr-Commit-Position: refs/heads/master@{#28539} TBR=brandtr@webrtc.org,ilnik@webrtc.org,asapersson@webrtc.org,stefan@webrtc.org,titovartem@webrtc.org Change-Id: I07c34256a76174f09a0d27eacbae6488e66f4b43 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: webrtc:10750 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/145340 Reviewed-by: Qingsi Wang <qingsi@webrtc.org> Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28545}