Retyped the frequency estimate of the comfort noise for the higher band to harmonize the AEC code(#4

webrtc/modules/audio_processing/aec/aec_core_internal.h

 /*
  *  Copyright (c) 2013 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.
  */
 
@@ skipping 184 matching lines @@
     float h_fft_buf[2][kExtendedNumPartitions * PART_LEN1]);
 extern WebRtcAecFilterAdaptation WebRtcAec_FilterAdaptation;
 typedef void (*WebRtcAecOverdriveAndSuppress)(AecCore* aec,
                                               float hNl[PART_LEN1],
                                               const float hNlFb,
                                               float efw[2][PART_LEN1]);
 extern WebRtcAecOverdriveAndSuppress WebRtcAec_OverdriveAndSuppress;
 
 typedef void (*WebRtcAecComfortNoise)(AecCore* aec,
                                       float efw[2][PART_LEN1],
-                                      complex_t* comfortNoiseHband,
+                                      float comfortNoiseHband[2][PART_LEN1],
                                       const float* noisePow,
                                       const float* lambda);
 extern WebRtcAecComfortNoise WebRtcAec_ComfortNoise;
 
 typedef void (*WebRtcAecSubBandCoherence)(AecCore* aec,
                                           float efw[2][PART_LEN1],
                                           float dfw[2][PART_LEN1],
                                           float xfw[2][PART_LEN1],
                                           float* fft,
                                           float* cohde,
                                           float* cohxd,
                                           int* const extreme_filter_divergence);
 extern WebRtcAecSubBandCoherence WebRtcAec_SubbandCoherence;
 
 typedef int (*WebRtcAecPartitionDelay)(const AecCore* aec);
 extern WebRtcAecPartitionDelay WebRtcAec_PartitionDelay;
 
 typedef void (*WebRtcAecStoreAsComplex)(const float* data,
                                         float data_complex[2][PART_LEN1]);
 extern WebRtcAecStoreAsComplex WebRtcAec_StoreAsComplex;
 
 typedef void (*WebRtcAecWindowData)(float* x_windowed, const float* x);
 extern WebRtcAecWindowData WebRtcAec_WindowData;
 
 #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_AEC_AEC_CORE_INTERNAL_H_