Reland of Moved ring-buffer related files from common_audio to audio_processing"

webrtc/modules/audio_processing/utility/audio_ring_buffer.h

 /*
  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
-#ifndef WEBRTC_COMMON_AUDIO_AUDIO_RING_BUFFER_H_
-#define WEBRTC_COMMON_AUDIO_AUDIO_RING_BUFFER_H_
+#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_UTILITY_AUDIO_RING_BUFFER_H_
+#define WEBRTC_MODULES_AUDIO_PROCESSING_UTILITY_AUDIO_RING_BUFFER_H_
 
 #include <stddef.h>
 #include <vector>
 
 struct RingBuffer;
 
 namespace webrtc {
 
 // A ring buffer tailored for float deinterleaved audio. Any operation that
 // cannot be performed as requested will cause a crash (e.g. insufficient data
@@ skipping 23 matching lines @@
   void MoveReadPositionForward(size_t frames);
   void MoveReadPositionBackward(size_t frames);
 
  private:
   // TODO(kwiberg): Use std::vector<std::unique_ptr<RingBuffer>> instead.
   std::vector<RingBuffer*> buffers_;
 };
 
 }  // namespace webrtc
 
-#endif  // WEBRTC_COMMON_AUDIO_AUDIO_RING_BUFFER_H_
+#endif  // WEBRTC_MODULES_AUDIO_PROCESSING_UTILITY_AUDIO_RING_BUFFER_H_