Support multiple HRTFDatabases for different sample-rates

Source/modules/webaudio/OfflineAudioContext.cpp

 /*
  * Copyright (C) 2012, 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 13 matching lines @@
 
 #include "config.h"
 
 #if ENABLE(WEB_AUDIO)
 
 #include "modules/webaudio/OfflineAudioContext.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ScriptExecutionContext.h"
-#include "core/platform/audio/HRTFDatabaseLoader.h"
 
 namespace WebCore {
 
 PassRefPtr<OfflineAudioContext> OfflineAudioContext::create(ScriptExecutionContext* context, unsigned numberOfChannels, size_t numberOfFrames, float sampleRate, ExceptionCode& ec)
 {
     // FIXME: add support for workers.
     if (!context || !context->isDocument()) {
         ec = NOT_SUPPORTED_ERR;
         return 0;
     }
 
     Document* document = toDocument(context);
 
-    // FIXME: offline contexts have limitations on supported sample-rates.
-    // Currently all AudioContexts must have the same sample-rate.
-    HRTFDatabaseLoader* loader = HRTFDatabaseLoader::loader();
-    if (numberOfChannels > 10 || !isSampleRateRangeGood(sampleRate) || (loader && loader->databaseSampleRate() != sampleRate)) {
+    if (numberOfChannels > 10 || !isSampleRateRangeGood(sampleRate)) {
         ec = SYNTAX_ERR;
         return 0;
     }
 
     RefPtr<OfflineAudioContext> audioContext(adoptRef(new OfflineAudioContext(document, numberOfChannels, numberOfFrames, sampleRate)));
     audioContext->suspendIfNeeded();
     return audioContext.release();
 }
 
 OfflineAudioContext::OfflineAudioContext(Document* document, unsigned numberOfChannels, size_t numberOfFrames, float sampleRate)
     : AudioContext(document, numberOfChannels, numberOfFrames, sampleRate)
 {
 }
 
 OfflineAudioContext::~OfflineAudioContext()
 {
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)