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

webrtc/modules/audio_coding/codecs/isac/fix/source/filters_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.
  */
 
 #include <arm_neon.h>
-#include <assert.h>
 
+#include "webrtc/base/checks.h"
 #include "webrtc/modules/audio_coding/codecs/isac/fix/source/codec.h"
 
 // Autocorrelation function in fixed point.
 // NOTE! Different from SPLIB-version in how it scales the signal.
 int WebRtcIsacfix_AutocorrNeon(int32_t* __restrict r,
                                const int16_t* x,
                                int16_t n,
                                int16_t order,
                                int16_t* __restrict scale) {
   int i = 0;
   int16_t scaling = 0;
   uint32_t temp = 0;
   int64_t prod = 0;
   int64_t prod_tail = 0;
 
-  assert(n % 4 == 0);
-  assert(n >= 8);
+  RTC_DCHECK_EQ(0, n % 4);
+  RTC_DCHECK_GE(n, 8);
 
   // Calculate r[0].
   int16x4_t x0_v;
   int32x4_t tmpa0_v;
   int64x2_t tmpb_v;
 
   tmpb_v = vdupq_n_s64(0);
   const int16_t* x_start = x;
   const int16_t* x_end0 = x_start + n;
   while (x_start < x_end0) {
@@ skipping 64 matching lines @@
     }
 
     r[i] = (int32_t)((prod + prod_tail) >> scaling);
   }
 
   *scale = scaling;
 
   return order + 1;
 }