Reason for revert: This CL caused a google3 breakage due to dependencies in Google3. I will fix that, and reland. Original issue's description: > Moved ring-buffer related files from common_audio to audio_processing > > BUG=webrtc:5724 > NOPRESUBMIT=true > > Committed: https://crrev.com/711ccc8d96490f58cc3d7fd9207c19d4d881d4dc > Cr-Commit-Position: refs/heads/master@{#12227} TBR=ivoc@webrtc.org,henrik.lundin@webrtc.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=webrtc:5724 Review URL: https://codereview.webrtc.org/1856323002 Cr-Commit-Position: refs/heads/master@{#12232}