Move smoothing filter to common audio.

webrtc/modules/audio_coding/audio_network_adaptor/fec_controller.h

 /*
  *  Copyright (c) 2016 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_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_FEC_CONTROLLER_H_
 #define WEBRTC_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_FEC_CONTROLLER_H_
 
 #include <memory>
 
 #include "webrtc/base/constructormagic.h"
+#include "webrtc/base/smoothing_filter.h"
 #include "webrtc/modules/audio_coding/audio_network_adaptor/controller.h"
-#include "webrtc/modules/audio_coding/audio_network_adaptor/smoothing_filter.h"
 
 namespace webrtc {
 
 class FecController final : public Controller {
  public:
   struct Config {
     struct Threshold {
       // Threshold defines a curve in the bandwidth/packet-loss domain. The
       // curve is characterized by the two conjunction points: A and B.
       //
@@ skipping 67 matching lines @@
 
   const ThresholdInfo fec_enabling_threshold_info_;
   const ThresholdInfo fec_disabling_threshold_info_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(FecController);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_FEC_CONTROLLER_H_