Remove the WEB_AUDIO compile time flag

third_party/WebKit/Source/modules/webaudio/DelayDSPKernel.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 DelayDSPKernel_h
 #define DelayDSPKernel_h
 
 #include "modules/webaudio/DelayProcessor.h"
 #include "platform/audio/AudioDelayDSPKernel.h"
 
-#if ENABLE(WEB_AUDIO)
-
 namespace blink {
 
 class DelayProcessor;
 
 class DelayDSPKernel final : public AudioDelayDSPKernel {
 public:
     explicit DelayDSPKernel(DelayProcessor*);
 
 protected:
     bool hasSampleAccurateValues() override;
     void calculateSampleAccurateValues(float* delayTimes, size_t framesToProcess) override;
     double delayTime(float sampleRate) override;
 
 private:
     DelayProcessor* delayProcessor() { return static_cast<DelayProcessor*>(processor()); }
 };
 
 } // namespace blink
 
-#endif // ENABLE(WEB_AUDIO)
-
 #endif // DelayDSPKernel_h