Reason for revert: This CL breaks internal dependencies. Original issue's description: > Delete webrtc::VideoFrame::CopyFrame. > > BUG=webrtc:5682 > > Committed: https://crrev.com/0e7c7ce35d9449c5bb13328d1bfb04ad32e48ccc > Cr-Commit-Position: refs/heads/master@{#14550} TBR=magjed@webrtc.org,tommi@webrtc.org,nisse@webrtc.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=webrtc:5682 Review-Url: https://codereview.webrtc.org/2397943003 Cr-Commit-Position: refs/heads/master@{#14553}