Remove the WEB_AUDIO compile time flag

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

 /*
  * Copyright (C) 2011, Google Inc. All rights reserved.
  *
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  * modification, are permitted provided that the following conditions
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  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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 #include "modules/webaudio/WaveShaperDSPKernel.h"
-
-#if ENABLE(WEB_AUDIO)
 #include "wtf/MainThread.h"
 #include "wtf/Threading.h"
 #include <algorithm>
 
 const unsigned RenderingQuantum = 128;
 
 namespace blink {
 
 WaveShaperDSPKernel::WaveShaperDSPKernel(WaveShaperProcessor* processor)
     : AudioDSPKernel(processor)
@@ skipping 160 matching lines @@
         }
     default:
         ASSERT_NOT_REACHED();
     }
 
     return static_cast<double>(latencyFrames) / sampleRate();
 }
 
 } // namespace blink
 
-#endif // ENABLE(WEB_AUDIO)