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

webrtc/common_audio/vad/vad_sp.c

 /*
  *  Copyright (c) 2012 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 "webrtc/common_audio/vad/vad_sp.h"
 
-#include <assert.h>
-
+#include "webrtc/base/checks.h"
 #include "webrtc/common_audio/signal_processing/include/signal_processing_library.h"
 #include "webrtc/common_audio/vad/vad_core.h"
 #include "webrtc/typedefs.h"
 
 // Allpass filter coefficients, upper and lower, in Q13.
 // Upper: 0.64, Lower: 0.17.
 static const int16_t kAllPassCoefsQ13[2] = { 5243, 1392 };  // Q13.
 static const int16_t kSmoothingDown = 6553;  // 0.2 in Q15.
 static const int16_t kSmoothingUp = 32439;  // 0.99 in Q15.
 
@@ skipping 40 matching lines @@
   // Offset to beginning of the 16 minimum values in memory.
   const int offset = (channel << 4);
   int16_t current_median = 1600;
   int16_t alpha = 0;
   int32_t tmp32 = 0;
   // Pointer to memory for the 16 minimum values and the age of each value of
   // the |channel|.
   int16_t* age = &self->index_vector[offset];
   int16_t* smallest_values = &self->low_value_vector[offset];
 
-  assert(channel < kNumChannels);
+  RTC_DCHECK_LT(channel, kNumChannels);
 
   // Each value in |smallest_values| is getting 1 loop older. Update |age|, and
   // remove old values.
   for (i = 0; i < 16; i++) {
     if (age[i] != 100) {
       age[i]++;
     } else {
       // Too old value. Remove from memory and shift larger values downwards.
       for (j = i; j < 16; j++) {
         smallest_values[j] = smallest_values[j + 1];
@@ skipping 83 matching lines @@
       alpha = kSmoothingUp;  // 0.99 in Q15.
     }
   }
   tmp32 = (alpha + 1) * self->mean_value[channel];
   tmp32 += (WEBRTC_SPL_WORD16_MAX - alpha) * current_median;
   tmp32 += 16384;
   self->mean_value[channel] = (int16_t) (tmp32 >> 15);
 
   return self->mean_value[channel];
 }