Drop [LegacyInterfaceTypeChecking] for the Web Audio API

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

 /*
  * Copyright (C) 2011, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 92 matching lines @@
 {
     if (type > BiquadProcessor::Allpass)
         return false;
 
     biquadProcessor()->setType(static_cast<BiquadProcessor::FilterType>(type));
     return true;
 }
 
 void BiquadFilterNode::getFrequencyResponse(const DOMFloat32Array* frequencyHz, DOMFloat32Array* magResponse, DOMFloat32Array* phaseResponse)
 {
-    if (!frequencyHz || !magResponse || !phaseResponse)
-        return;
+    ASSERT(frequencyHz && magResponse && phaseResponse);
 
     int n = std::min(frequencyHz->length(), std::min(magResponse->length(), phaseResponse->length()));
     if (n)
         biquadProcessor()->getFrequencyResponse(n, frequencyHz->data(), magResponse->data(), phaseResponse->data());
 }
 
 } // namespace blink
 
 #endif // ENABLE(WEB_AUDIO)