Support multiple HRTFDatabases for different sample-rates

Source/modules/webaudio/AudioContext.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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 71 matching lines @@
 
     virtual ~AudioContext();
 
     bool isInitialized() const;
     
     bool isOfflineContext() { return m_isOfflineContext; }
 
     // Returns true when initialize() was called AND all asynchronous initialization has completed.
     bool isRunnable() const;
 
+    HRTFDatabaseLoader* hrtfDatabaseLoader() const { return m_hrtfDatabaseLoader.get(); }
+
     // Document notification
     virtual void stop();
 
     Document* document() const; // ASSERTs if document no longer exists.
     bool hasDocument();
 
     AudioDestinationNode* destination() { return m_destinationNode.get(); }
     size_t currentSampleFrame() const { return m_destinationNode->currentSampleFrame(); }
     double currentTime() const { return m_destinationNode->currentTime(); }
     float sampleRate() const { return m_destinationNode->sampleRate(); }
@@ skipping 242 matching lines @@
     // It is somewhat arbitrary and could be increased if necessary.
     enum { MaxNumberOfChannels = 32 };
 
     // Number of AudioBufferSourceNodes that are active (playing).
     int m_activeSourceCount;
 };
 
 } // WebCore
 
 #endif // AudioContext_h