Replace ENABLE(ASSERT) with DCHECK_IS_ON().

third_party/WebKit/Source/platform/audio/ffmpeg/FFTFrameFFMPEG.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
@@ skipping 24 matching lines @@
 #include "platform/audio/VectorMath.h"
 
 extern "C" {
 #include <libavcodec/avfft.h>
 }
 
 #include "wtf/MathExtras.h"
 
 namespace blink {
 
-#if ENABLE(ASSERT)
+#if DCHECK_IS_ON()
 // Max FFT size for FFMPEG.  WebAudio currently only uses FFTs up to size 15
 // (2^15 points).
 const int kMaxFFTPow2Size = 16;
 #endif
 
 // Normal constructor: allocates for a given fftSize.
 FFTFrame::FFTFrame(unsigned fftSize)
     : m_FFTSize(fftSize),
       m_log2FFTSize(static_cast<unsigned>(log2(fftSize))),
       m_realData(fftSize / 2),
@@ skipping 103 matching lines @@
   int pow2size = static_cast<int>(log2(fftSize));
   ASSERT(pow2size < kMaxFFTPow2Size);
 
   RDFTContext* context = av_rdft_init(pow2size, (RDFTransformType)trans);
   return context;
 }
 
 }  // namespace blink
 
 #endif  // USE(WEBAUDIO_FFMPEG)