Remove the WEB_AUDIO compile time flag

third_party/WebKit/Source/platform/audio/AudioDelayDSPKernel.h

 /*
  * Copyright (C) 2010, 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 10 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef AudioDelayDSPKernel_h
 #define AudioDelayDSPKernel_h
 
 #include "platform/audio/AudioArray.h"
 #include "platform/audio/AudioDSPKernel.h"
 
-#if ENABLE(WEB_AUDIO)
-
 namespace blink {
 
 class PLATFORM_EXPORT AudioDelayDSPKernel : public AudioDSPKernel {
 public:
     AudioDelayDSPKernel(double maxDelayTime, float sampleRate);
 
     void process(const float* source, float* destination, size_t framesToProcess) override;
     void reset() override;
 
     double maxDelayTime() const { return m_maxDelayTime; }
@@ skipping 18 matching lines @@
     bool m_firstTime;
     double m_desiredDelayFrames;
 
     AudioFloatArray m_delayTimes;
 
     size_t bufferLengthForDelay(double delayTime, double sampleRate) const;
 };
 
 } // namespace blink
 
-#endif // ENABLE(WEB_AUDIO)
-
 #endif // AudioDelayDSPKernel_h