Require use of AudioBus::create() to avoid ref-counting issues

Source/core/platform/audio/AudioResampler.cpp

 /*
  * 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 24 matching lines @@
 using namespace std;
  
 namespace WebCore {
 
 const double AudioResampler::MaxRate = 8.0;
 
 AudioResampler::AudioResampler()
     : m_rate(1.0)
 {
     m_kernels.append(adoptPtr(new AudioResamplerKernel(this)));
-    m_sourceBus = adoptRef(new AudioBus(1, 0, false));
+    m_sourceBus = AudioBus::create(1, 0, false);
 }
 
 AudioResampler::AudioResampler(unsigned numberOfChannels)
     : m_rate(1.0)
 {
     for (unsigned i = 0; i < numberOfChannels; ++i)
         m_kernels.append(adoptPtr(new AudioResamplerKernel(this)));
 
-    m_sourceBus = adoptRef(new AudioBus(numberOfChannels, 0, false));
+    m_sourceBus = AudioBus::create(numberOfChannels, 0, false);
 }
 
 void AudioResampler::configureChannels(unsigned numberOfChannels)
 {
     unsigned currentSize = m_kernels.size();
     if (numberOfChannels == currentSize)
         return; // already setup
 
     // First deal with adding or removing kernels.
     if (numberOfChannels > currentSize) {
         for (unsigned i = currentSize; i < numberOfChannels; ++i)
             m_kernels.append(adoptPtr(new AudioResamplerKernel(this)));
     } else
         m_kernels.resize(numberOfChannels);
 
     // Reconfigure our source bus to the new channel size.
-    m_sourceBus = adoptRef(new AudioBus(numberOfChannels, 0, false));
+    m_sourceBus = AudioBus::create(numberOfChannels, 0, false);
 }
 
 void AudioResampler::process(AudioSourceProvider* provider, AudioBus* destinationBus, size_t framesToProcess)
 {
     ASSERT(provider);
     if (!provider)
         return;
         
     unsigned numberOfChannels = m_kernels.size();
 
@@ skipping 37 matching lines @@
 void AudioResampler::reset()
 {
     unsigned numberOfChannels = m_kernels.size();
     for (unsigned i = 0; i < numberOfChannels; ++i)
         m_kernels[i]->reset();
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)