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

Source/core/platform/audio/Reverb.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
@@ skipping 114 matching lines @@
 
         OwnPtr<ReverbConvolver> convolver = adoptPtr(new ReverbConvolver(channel, renderSliceSize, maxFFTSize, convolverRenderPhase, useBackgroundThreads));
         m_convolvers.append(convolver.release());
 
         convolverRenderPhase += renderSliceSize;
     }
 
     // For "True" stereo processing we allocate a temporary buffer to avoid repeatedly allocating it in the process() method.
     // It can be bad to allocate memory in a real-time thread.
     if (numResponseChannels == 4)
-        m_tempBuffer = adoptRef(new AudioBus(2, MaxFrameSize));
+        m_tempBuffer = AudioBus::create(2, MaxFrameSize);
 }
 
 void Reverb::process(const AudioBus* sourceBus, AudioBus* destinationBus, size_t framesToProcess)
 {
     // Do a fairly comprehensive sanity check.
     // If these conditions are satisfied, all of the source and destination pointers will be valid for the various matrixing cases.
     bool isSafeToProcess = sourceBus && destinationBus && sourceBus->numberOfChannels() > 0 && destinationBus->numberOfChannels() > 0
         && framesToProcess <= MaxFrameSize && framesToProcess <= sourceBus->length() && framesToProcess <= destinationBus->length(); 
     
     ASSERT(isSafeToProcess);
@@ skipping 88 matching lines @@
 }
 
 size_t Reverb::latencyFrames() const
 {
     return !m_convolvers.isEmpty() ? m_convolvers.first()->latencyFrames() : 0;
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)