Move DOMArrayBuffer, DOMArrayBufferViews and DataView to the heap.

third_party/WebKit/Source/modules/webaudio/AudioBuffer.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
@@ skipping 42 matching lines @@
 
     static AudioBuffer* createFromAudioBus(AudioBus*);
 
     // Format
     size_t length() const { return m_length; }
     double duration() const { return length() / static_cast<double>(sampleRate()); }
     float sampleRate() const { return m_sampleRate; }
 
     // Channel data access
     unsigned numberOfChannels() const { return m_channels.size(); }
-    PassRefPtr<DOMFloat32Array> getChannelData(unsigned channelIndex, ExceptionState&);
+    DOMFloat32Array* getChannelData(unsigned channelIndex, ExceptionState&);
     DOMFloat32Array* getChannelData(unsigned channelIndex);
     void copyFromChannel(DOMFloat32Array*, long channelNumber, ExceptionState&);
     void copyFromChannel(DOMFloat32Array*, long channelNumber, unsigned long startInChannel, ExceptionState&);
     void copyToChannel(DOMFloat32Array*, long channelNumber, ExceptionState&);
     void copyToChannel(DOMFloat32Array*, long channelNumber, unsigned long startInChannel, ExceptionState&);
 
     void zero();
 
-    DEFINE_INLINE_TRACE() { }
+    DEFINE_INLINE_TRACE()
+    {
+        visitor->trace(m_channels);
+    }
 
 private:
-    static PassRefPtr<DOMFloat32Array> createFloat32ArrayOrNull(size_t length);
+    static DOMFloat32Array* createFloat32ArrayOrNull(size_t length);
 
 protected:
     AudioBuffer(unsigned numberOfChannels, size_t numberOfFrames, float sampleRate);
     explicit AudioBuffer(AudioBus*);
     bool createdSuccessfully(unsigned desiredNumberOfChannels) const;
 
     float m_sampleRate;
     size_t m_length;
 
-    Vector<RefPtr<DOMFloat32Array>> m_channels;
+    HeapVector<Member<DOMFloat32Array>> m_channels;
 };
 
 } // namespace blink
 
 #endif // AudioBuffer_h