[part 2] Make classes and structures in modules fast-allocated.

Source/modules/webaudio/AudioNodeOutput.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 20 matching lines @@
 #include "wtf/HashSet.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 class AudioNodeInput;
 
 // AudioNodeOutput represents a single output for an AudioNode.
 // It may be connected to one or more AudioNodeInputs.
 class AudioNodeOutput final {
+    WTF_MAKE_FAST_ALLOCATED(AudioNodeOutput);
 public:
     // It's OK to pass 0 for numberOfChannels in which case
     // setNumberOfChannels() must be called later on.
     static PassOwnPtr<AudioNodeOutput> create(AudioHandler*, unsigned numberOfChannels);
     void dispose();
 
     // Causes our AudioNode to process if it hasn't already for this render quantum.
     // It returns the bus containing the processed audio for this output, returning inPlaceBus if in-place processing was possible.
     // Called from context's audio thread.
     AudioBus* pull(AudioBus* inPlaceBus, size_t framesToProcess);
@@ skipping 107 matching lines @@
     unsigned m_renderingParamFanOutCount;
 
     // This collection of raw pointers is safe because they are retained by
     // AudioParam objects retained by m_connectedParams of the owner AudioNode.
     HashSet<AudioParamHandler*> m_params;
 };
 
 } // namespace blink
 
 #endif // AudioNodeOutput_h