Don't delay setting of channelInterpretation and channelCountMode

third_party/WebKit/Source/modules/webaudio/ScriptProcessorNode.cpp

 /*
  * 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 37 matching lines @@
     // Regardless of the allowed buffer sizes, we still need to process at the granularity of the AudioNode.
     if (m_bufferSize < ProcessingSizeInFrames)
         m_bufferSize = ProcessingSizeInFrames;
 
     DCHECK_LE(numberOfInputChannels, BaseAudioContext::maxNumberOfChannels());
 
     addInput();
     addOutput(numberOfOutputChannels);
 
     m_channelCount = numberOfInputChannels;
-    m_channelCountMode = Explicit;
+    setInternalChannelCountMode(Explicit);
 
     initialize();
 }
 
 PassRefPtr<ScriptProcessorHandler> ScriptProcessorHandler::create(AudioNode& node, float sampleRate, size_t bufferSize, unsigned numberOfInputChannels, unsigned numberOfOutputChannels)
 {
     return adoptRef(new ScriptProcessorHandler(node, sampleRate, bufferSize, numberOfInputChannels, numberOfOutputChannels));
 }
 
 ScriptProcessorHandler::~ScriptProcessorHandler()
@@ skipping 309 matching lines @@
     // If |onaudioprocess| event handler is defined, the node should not be
     // GCed even if it is out of scope.
     if (hasEventListeners(EventTypeNames::audioprocess))
         return true;
 
     return false;
 }
 
 } // namespace blink