Replace calls to assert() with RTC_DCHECK_*() in .c code

webrtc/modules/audio_coding/codecs/isac/fix/source/filterbanks_neon.c

 /*
  *  Copyright (c) 2014 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.
  */
 
 // Contains a function for WebRtcIsacfix_AllpassFilter2FixDec16Neon()
 // in iSAC codec, optimized for ARM Neon platform. Bit exact with function
 // WebRtcIsacfix_AllpassFilter2FixDec16C() in filterbanks.c. Prototype
 // C code is at end of this file.
 
 #include <arm_neon.h>
-#include <assert.h>
+
+#include "webrtc/base/checks.h"
 
 void WebRtcIsacfix_AllpassFilter2FixDec16Neon(
     int16_t* data_ch1,  // Input and output in channel 1, in Q0
     int16_t* data_ch2,  // Input and output in channel 2, in Q0
     const int16_t* factor_ch1,  // Scaling factor for channel 1, in Q15
     const int16_t* factor_ch2,  // Scaling factor for channel 2, in Q15
     const int length,  // Length of the data buffers
     int32_t* filter_state_ch1,  // Filter state for channel 1, in Q16
     int32_t* filter_state_ch2) {  // Filter state for channel 2, in Q16
-  assert(length % 2 == 0);
+  RTC_DCHECK_EQ(0, length % 2);
   int n = 0;
   int16x4_t factorv;
   int16x4_t datav;
   int32x4_t statev;
 
   // Load factor_ch1 and factor_ch2.
   factorv = vld1_dup_s16(factor_ch1);
   factorv = vld1_lane_s16(factor_ch1 + 1, factorv, 1);
   factorv = vld1_lane_s16(factor_ch2, factorv, 2);
   factorv = vld1_lane_s16(factor_ch2 + 1, factorv, 3);
@@ skipping 229 matching lines @@
 //  state1_ch2 = WebRtcSpl_AddSatW32(a1_ch2<<1, (uint32_t)sample1_ch2<<16);
 //
 //  data_ch1[n + 1] = (int16_t) (b1_ch1 >> 16); //Save as Q0
 //  data_ch2[n + 1] = (int16_t) (b1_ch2 >> 16);
 //
 //  filter_state_ch1[0] = state0_ch1;
 //  filter_state_ch1[1] = state1_ch1;
 //  filter_state_ch2[0] = state0_ch2;
 //  filter_state_ch2[1] = state1_ch2;
 //}