Allow assertions to be enabled in Blink Release builds.

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 26 matching lines @@
 #include "platform/audio/VectorMath.h"
 
 extern "C" {
     #include <libavcodec/avfft.h>
 }
 
 #include "wtf/MathExtras.h"
 
 namespace WebCore {
 
-#if ASSERT_ENABLED
+#if ENABLE(ASSERT)
 const int kMaxFFTPow2Size = 24;
 #endif
 
 // Normal constructor: allocates for a given fftSize.
 FFTFrame::FFTFrame(unsigned fftSize)
     : m_FFTSize(fftSize)
     , m_log2FFTSize(static_cast<unsigned>(log2(fftSize)))
     , m_forwardContext(0)
     , m_inverseContext(0)
     , m_complexData(fftSize)
@@ skipping 124 matching lines @@
 
     RDFTContext* context = av_rdft_init(pow2size, (RDFTransformType)trans);
     return context;
 }
 
 } // namespace WebCore
 
 #endif // USE(WEBAUDIO_FFMPEG)
 
 #endif // ENABLE(WEB_AUDIO)