Slightly reduce memory usage in OscillatorNode

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

 /*
  * Copyright (C) 2012, 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 33 matching lines @@
 // OscillatorNode is an audio generator of periodic waveforms.
 
 class OscillatorHandler final : public AudioScheduledSourceHandler {
  public:
   // The waveform type.
   // These must be defined as in the .idl file.
   enum { SINE = 0, SQUARE = 1, SAWTOOTH = 2, TRIANGLE = 3, CUSTOM = 4 };
 
   static PassRefPtr<OscillatorHandler> Create(AudioNode&,
                                               float sample_rate,
+                                              const String& oscillator_type,
+                                              PeriodicWave* wave_table,
                                               AudioParamHandler& frequency,
                                               AudioParamHandler& detune);
   ~OscillatorHandler() override;
 
   // AudioHandler
   void Process(size_t frames_to_process) override;
 
   String GetType() const;
   void SetType(const String&, ExceptionState&);
 
   void SetPeriodicWave(PeriodicWave*);
 
  private:
   OscillatorHandler(AudioNode&,
                     float sample_rate,
+                    const String& oscillator_type,
+                    PeriodicWave* wave_table,
                     AudioParamHandler& frequency,
                     AudioParamHandler& detune);
   bool SetType(unsigned);  // Returns true on success.
 
   // Returns true if there are sample-accurate timeline parameter changes.
   bool CalculateSampleAccuratePhaseIncrements(size_t frames_to_process);
 
   bool PropagatesSilence() const override;
 
   // One of the waveform types defined in the enum.
@@ skipping 19 matching lines @@
   // This Persistent doesn't make a reference cycle including the owner
   // OscillatorNode. It is cross-thread, as it will be accessed by the audio
   // thread.
   CrossThreadPersistent<PeriodicWave> periodic_wave_;
 };
 
 class OscillatorNode final : public AudioScheduledSourceNode {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
-  static OscillatorNode* Create(BaseAudioContext&, ExceptionState&);
+  static OscillatorNode* Create(BaseAudioContext&,
+                                const String& oscillator_type,
+                                PeriodicWave* wave_table,
+                                ExceptionState&);
   static OscillatorNode* Create(BaseAudioContext*,
                                 const OscillatorOptions&,
                                 ExceptionState&);
   DECLARE_VIRTUAL_TRACE();
 
   String type() const;
   void setType(const String&, ExceptionState&);
   AudioParam* frequency();
   AudioParam* detune();
   void setPeriodicWave(PeriodicWave*);
 
  private:
-  OscillatorNode(BaseAudioContext&);
+  OscillatorNode(BaseAudioContext&,
+                 const String& oscillator_type,
+                 PeriodicWave* wave_table);
   OscillatorHandler& GetOscillatorHandler() const;
 
   Member<AudioParam> frequency_;
   Member<AudioParam> detune_;
 };
 
 }  // namespace blink
 
 #endif  // OscillatorNode_h