Merge 144417

Source/WebCore/Modules/webaudio/AudioNodeOutput.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 114 matching lines @@
 
     // Setup the actual destination bus for processing when our node's process() method gets called in processIfNecessary() below.
     m_actualDestinationBus = isInPlace ? inPlaceBus : m_internalBus.get();
 
     node()->processIfNecessary(framesToProcess);
     return m_actualDestinationBus;
 }
 
 AudioBus* AudioNodeOutput::bus() const
 {
+    // FIXME: Add ASSERTs/checkings to restrict the calling of bus(), because the calling is 
+    // only safe after setting the in-place bus in pull() and before updating the referred bus.
     ASSERT(const_cast<AudioNodeOutput*>(this)->context()->isAudioThread());
     ASSERT(m_actualDestinationBus);
     return m_actualDestinationBus;
 }
 
 unsigned AudioNodeOutput::fanOutCount()
 {
     ASSERT(context()->isGraphOwner());
     return m_inputs.size();
 }
@@ skipping 108 matching lines @@
             AudioNodeInput* input = *i;
             input->enable(this);
         }
         m_isEnabled = true;
     }
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)