Implement tail processing for AudioNodes

third_party/WebKit/Source/modules/webaudio/PannerNode.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 98 matching lines @@
 
   double ConeOuterGain() const { return cone_effect_.OuterGain(); }
   void SetConeOuterGain(double);
 
   void MarkPannerAsDirty(unsigned);
 
   double TailTime() const override { return panner_ ? panner_->TailTime() : 0; }
   double LatencyTime() const override {
     return panner_ ? panner_->LatencyTime() : 0;
   }
+  bool RequiresTailProcessing() const override;
 
   void SetChannelCount(unsigned long, ExceptionState&) final;
   void SetChannelCountMode(const String&, ExceptionState&) final;
 
  private:
   PannerHandler(AudioNode&,
                 float sample_rate,
                 AudioParamHandler& position_x,
                 AudioParamHandler& position_y,
                 AudioParamHandler& position_z,
@@ skipping 123 matching lines @@
   Member<AudioParam> position_z_;
 
   Member<AudioParam> orientation_x_;
   Member<AudioParam> orientation_y_;
   Member<AudioParam> orientation_z_;
 };
 
 }  // namespace blink
 
 #endif  // PannerNode_h