Re-land: Ensure that ArrayBuffers actively being used by the Web Audio API cannot be neutered

Source/wtf/ArrayBufferView.cpp

 /*
  * Copyright (C) 2009 Apple 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 15 matching lines @@
 #include "config.h"
 #include "ArrayBufferView.h"
 
 #include "ArrayBuffer.h"
 
 namespace WTF {
 
 ArrayBufferView::ArrayBufferView(PassRefPtr<ArrayBuffer> buffer,
                        unsigned byteOffset)
         : m_byteOffset(byteOffset)
+        , m_isNeuterable(true)
         , m_buffer(buffer)
         , m_prevView(0)
         , m_nextView(0)
 {
     m_baseAddress = m_buffer ? (static_cast<char*>(m_buffer->data()) + m_byteOffset) : 0;
     if (m_buffer)
         m_buffer->addView(this);
 }
 
 ArrayBufferView::~ArrayBufferView()
 {
     if (m_buffer)
         m_buffer->removeView(this);
 }
 
 void ArrayBufferView::neuter()
 {
     m_buffer = 0;
     m_byteOffset = 0;
 }
 
 }