Reason for revert: Breaks downstream compilation using webrtc/common_audio/real_fourier.h. Let's chat tomorrow on how to coordinate a re-land. Original issue's description: > Replace scoped_ptr with unique_ptr in webrtc/common_audio/ > > BUG=webrtc:5520 > > Committed: https://crrev.com/79d7a499c0c3e1de8f5ad1138236f0386701053f > Cr-Commit-Position: refs/heads/master@{#11716} TBR=henrik.lundin@webrtc.org,kwiberg@webrtc.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=webrtc:5520 Review URL: https://codereview.webrtc.org/1726043002 Cr-Commit-Position: refs/heads/master@{#11726}