Return the correct channelCountMode and channelInterpretation

third_party/WebKit/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 248 matching lines @@
 
     volatile int m_connectionRefCount;
 
     bool m_isDisabled;
 
 #if DEBUG_AUDIONODE_REFERENCES
     static bool s_isNodeCountInitialized;
     static int s_nodeCount[NodeTypeEnd];
 #endif
 
-protected:
-    unsigned m_channelCount;
     ChannelCountMode m_channelCountMode;
     AudioBus::ChannelInterpretation m_channelInterpretation;
+
+protected:
+    // Set the (internal) channelCountMode and channelInterpretation
+    // accordingly. Use this in the node constructors to set the internal state
+    // correctly if the node uses values different from the defaults.
+    void setInternalChannelCountMode(ChannelCountMode);
+    void setInternalChannelInterpretation(AudioBus::ChannelInterpretation);
+
+    unsigned m_channelCount;
     // The new channel count mode that will be used to set the actual mode in the pre or post
     // rendering phase.
     ChannelCountMode m_newChannelCountMode;
     // The new channel interpretation that will be used to set the actual
     // intepretation in the pre or post rendering phase.
     AudioBus::ChannelInterpretation m_newChannelInterpretation;
 
 };
 
 class MODULES_EXPORT AudioNode : public EventTargetWithInlineData {
@@ skipping 53 matching lines @@
     HeapVector<Member<HeapHashSet<Member<AudioNode>>>> m_connectedNodes;
     // Represents audio node graph with Oilpan references. N-th HeapHashSet
     // represents a set of AudioParam objects connected to this AudioNode's N-th
     // output.
     HeapVector<Member<HeapHashSet<Member<AudioParam>>>> m_connectedParams;
 };
 
 } // namespace blink
 
 #endif // AudioNode_h