ChannelSplitterNode channelCount and mode are constant

third_party/WebKit/Source/modules/webaudio/ChannelSplitterNode.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 24 matching lines @@
 class ChannelSplitterOptions;
 
 class ChannelSplitterHandler final : public AudioHandler {
  public:
   static PassRefPtr<ChannelSplitterHandler> create(AudioNode&,
                                                    float sampleRate,
                                                    unsigned numberOfOutputs);
 
   // AudioHandler
   void process(size_t framesToProcess) override;
+  void setChannelCount(unsigned long, ExceptionState&) final;
+  void setChannelCountMode(const String&, ExceptionState&) final;
 
  private:
   ChannelSplitterHandler(AudioNode&,
                          float sampleRate,
                          unsigned numberOfOutputs);
 };
 
 class ChannelSplitterNode final : public AudioNode {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   static ChannelSplitterNode* create(BaseAudioContext&, ExceptionState&);
   static ChannelSplitterNode* create(BaseAudioContext&,
                                      unsigned numberOfOutputs,
                                      ExceptionState&);
   static ChannelSplitterNode* create(BaseAudioContext*,
                                      const ChannelSplitterOptions&,
                                      ExceptionState&);
 
  private:
   ChannelSplitterNode(BaseAudioContext&, unsigned numberOfOutputs);
 };
 
 }  // namespace blink
 
 #endif  // ChannelSplitterNode_h