Replace ASSERT with DCHECK in WebAudio

third_party/WebKit/Source/modules/webaudio/IIRProcessor.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/webaudio/IIRProcessor.h"
 
 #include "modules/webaudio/IIRDSPKernel.h"
 #include "wtf/PtrUtil.h"
 #include <memory>
 
 namespace blink {
 
 IIRProcessor::IIRProcessor(float sampleRate, size_t numberOfChannels, const Vector<double>& feedforwardCoef, const Vector<double>& feedbackCoef)
     : AudioDSPKernelProcessor(sampleRate, numberOfChannels)
 {
     unsigned feedbackLength = feedbackCoef.size();
     unsigned feedforwardLength = feedforwardCoef.size();
-    ASSERT(feedbackLength > 0);
-    ASSERT(feedforwardLength > 0);
+    DCHECK_GT(feedbackLength, 0u);
+    DCHECK_GT(feedforwardLength, 0u);
 
     m_feedforward.allocate(feedforwardLength);
     m_feedback.allocate(feedbackLength);
     m_feedforward.copyToRange(feedforwardCoef.data(), 0, feedforwardLength);
     m_feedback.copyToRange(feedbackCoef.data(), 0, feedbackLength);
 
     // Need to scale the feedback and feedforward coefficients appropriately. (It's up to the caller
     // to ensure feedbackCoef[0] is not 0!)
-    ASSERT(feedbackCoef[0] != 0);
+    DCHECK_NE(feedbackCoef[0], 0);
 
     if (feedbackCoef[0] != 1) {
         // The provided filter is:
         //
         //   a[0]*y(n) + a[1]*y(n-1) + ... = b[0]*x(n) + b[1]*x(n-1) + ...
         //
         // We want the leading coefficient of y(n) to be 1:
         //
         //   y(n) + a[1]/a[0]*y(n-1) + ... = b[0]/a[0]*x(n) + b[1]/a[0]*x(n-1) + ...
         //
@@ skipping 35 matching lines @@
     for (unsigned i = 0; i < m_kernels.size(); ++i)
         m_kernels[i]->process(source->channel(i)->data(), destination->channel(i)->mutableData(), framesToProcess);
 }
 
 void IIRProcessor::getFrequencyResponse(int nFrequencies, const float* frequencyHz, float* magResponse, float* phaseResponse)
 {
     m_responseKernel->getFrequencyResponse(nFrequencies, frequencyHz, magResponse, phaseResponse);
 }
 
 } // namespace blink