Implement tail processing for AudioNodes

third_party/WebKit/Source/modules/webaudio/MediaElementAudioSourceNode.h

 /*
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 44 matching lines @@
   double TailTime() const override { return 0; }
   double LatencyTime() const override { return 0; }
 
   // Helpers for AudioSourceProviderClient implementation of
   // MediaElementAudioSourceNode.
   void SetFormat(size_t number_of_channels, float sample_rate);
   void OnCurrentSrcChanged(const KURL& current_src);
   void lock();
   void unlock();
 
+  bool RequiresTailProcessing() const override { return false; }
+
  private:
   MediaElementAudioSourceHandler(AudioNode&, HTMLMediaElement&);
   // As an audio source, we will never propagate silence.
   bool PropagatesSilence() const override { return false; }
 
   // Must be called only on the audio thread.
   bool PassesCORSAccessCheck();
 
   // Must be called only on the main thread.
   bool PassesCurrentSrcCORSAccessCheck(const KURL& current_src);
@@ skipping 58 matching lines @@
   void lock() override;
   void unlock() override;
 
  private:
   MediaElementAudioSourceNode(BaseAudioContext&, HTMLMediaElement&);
 };
 
 }  // namespace blink
 
 #endif  // MediaElementAudioSourceNode_h