Web Audio: Change the argument of AudioNode::addOutput().

Source/modules/webaudio/AudioNode.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 190 matching lines @@
     virtual const AtomicString& interfaceName() const override final;
     virtual ExecutionContext* executionContext() const override final;
 
     void updateChannelCountMode();
 
     DECLARE_VIRTUAL_TRACE();
 
 protected:
     // Inputs and outputs must be created before the AudioNode is initialized.
     void addInput();
-    void addOutput(AudioNodeOutput*);
+    void addOutput(unsigned numberOfChannels);
 
     // Called by processIfNecessary() to cause all parts of the rendering graph connected to us to process.
     // Each rendering quantum, the audio data for each of the AudioNode's inputs will be available after this method is called.
     // Called from context's audio thread.
     virtual void pullInputs(size_t framesToProcess);
 
     // Force all inputs to take any channel interpretation changes into account.
     void updateChannelsForInputs();
 
 private:
@@ skipping 24 matching lines @@
     ChannelCountMode m_channelCountMode;
     AudioBus::ChannelInterpretation m_channelInterpretation;
     // The new channel count mode that will be used to set the actual mode in the pre or post
     // rendering phase.
     ChannelCountMode m_newChannelCountMode;
 };
 
 } // namespace blink
 
 #endif // AudioNode_h