Remove the WEB_AUDIO compile time flag

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

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
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  *     its contributors may be used to endorse or promote products derived
  *     from this software without specific prior written permission.
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 #include "modules/webaudio/AudioBuffer.h"
-
-#if ENABLE(WEB_AUDIO)
 #include "bindings/core/v8/ExceptionMessages.h"
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/dom/ExceptionCode.h"
 #include "modules/webaudio/AbstractAudioContext.h"
 #include "platform/audio/AudioBus.h"
 #include "platform/audio/AudioFileReader.h"
 #include "platform/audio/AudioUtilities.h"
 #include "wtf/Float32Array.h"
 
 namespace blink {
@@ skipping 259 matching lines @@
     for (unsigned i = 0; i < m_channels.size(); ++i) {
         if (DOMFloat32Array* array = getChannelData(i)) {
             float* data = array->data();
             memset(data, 0, length() * sizeof(*data));
         }
     }
 }
 
 } // namespace blink
 
-#endif // ENABLE(WEB_AUDIO)