Oilpan: Remove adoptRefCountedGarbageCollected

Source/modules/webaudio/ConvolverNode.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 23 matching lines @@
 
 class AudioBuffer;
 class ExceptionState;
 class Reverb;
 
 class ConvolverNode final : public AudioNode {
     DEFINE_WRAPPERTYPEINFO();
 public:
     static ConvolverNode* create(AudioContext* context, float sampleRate)
     {
-        return adoptRefCountedGarbageCollectedWillBeNoop(new ConvolverNode(context, sampleRate));
+        return new ConvolverNode(context, sampleRate);
     }
 
     virtual ~ConvolverNode();
 
     // AudioNode
     virtual void dispose() override;
     virtual void process(size_t framesToProcess) override;
     virtual void initialize() override;
     virtual void uninitialize() override;
 
@@ skipping 18 matching lines @@
     // This synchronizes dynamic changes to the convolution impulse response with process().
     mutable Mutex m_processLock;
 
     // Normalize the impulse response or not. Must default to true.
     bool m_normalize;
 };
 
 } // namespace blink
 
 #endif // ConvolverNode_h