Implement tail processing for AudioNodes

third_party/WebKit/Source/modules/webaudio/IIRDSPKernel.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/IIRDSPKernel.h"
 
 #include "platform/wtf/MathExtras.h"
 
 namespace blink {
 
@@ skipping 28 matching lines @@
 
   // Convert from frequency in Hz to normalized frequency (0 -> 1),
   // with 1 equal to the Nyquist frequency.
   for (int k = 0; k < n_frequencies; ++k)
     frequency[k] = frequency_hz[k] / nyquist;
 
   iir_.GetFrequencyResponse(n_frequencies, frequency.data(), mag_response,
                             phase_response);
 }
 
+bool IIRDSPKernel::RequiresTailProcessing() const {
+  // Always return true even if the tail time and latency might both
+  // be zero.
+  return true;
+}
+
 double IIRDSPKernel::TailTime() const {
   return tail_time_;
 }
 
 double IIRDSPKernel::LatencyTime() const {
   return 0;
 }
 
 }  // namespace blink