HRTFDatabaseLoader is not an absolute condition to run audioContext

Source/modules/webaudio/AudioContext.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 110 matching lines @@
     , m_automaticPullNodesNeedUpdating(false)
     , m_connectionCount(0)
     , m_audioThread(0)
     , m_graphOwnerThread(UndefinedThreadIdentifier)
     , m_isOfflineContext(false)
     , m_activeSourceCount(0)
 {
     constructCommon();
 
     m_destinationNode = DefaultAudioDestinationNode::create(this);
-
-    // This sets in motion an asynchronous loading mechanism on another thread.
-    // We can check m_hrtfDatabaseLoader->isLoaded() to find out whether or not it has been fully loaded.
-    // It's not that useful to have a callback function for this since the audio thread automatically starts rendering on the graph
-    // when this has finished (see AudioDestinationNode).
-    m_hrtfDatabaseLoader = HRTFDatabaseLoader::createAndLoadAsynchronouslyIfNecessary(sampleRate());
 }
 
 // Constructor for offline (non-realtime) rendering.
 AudioContext::AudioContext(Document* document, unsigned numberOfChannels, size_t numberOfFrames, float sampleRate)
     : ActiveDOMObject(document)
     , m_isStopScheduled(false)
     , m_isInitialized(false)
     , m_isAudioThreadFinished(false)
     , m_destinationNode(nullptr)
     , m_automaticPullNodesNeedUpdating(false)
     , m_connectionCount(0)
     , m_audioThread(0)
     , m_graphOwnerThread(UndefinedThreadIdentifier)
     , m_isOfflineContext(true)
     , m_activeSourceCount(0)
 {
     constructCommon();
 
-    m_hrtfDatabaseLoader = HRTFDatabaseLoader::createAndLoadAsynchronouslyIfNecessary(sampleRate);
-
     // Create a new destination for offline rendering.
     m_renderTarget = AudioBuffer::create(numberOfChannels, numberOfFrames, sampleRate);
     ASSERT(m_renderTarget);
     m_destinationNode = OfflineAudioDestinationNode::create(this, m_renderTarget.get());
     ASSERT(m_destinationNode);
 }
 
 void AudioContext::constructCommon()
 {
     ScriptWrappable::init(this);
@@ skipping 86 matching lines @@
     derefUnfinishedSourceNodes();
 
     m_isInitialized = false;
 }
 
 bool AudioContext::isInitialized() const
 {
     return m_isInitialized;
 }
 
-bool AudioContext::isRunnable() const
-{
-    if (!isInitialized())
-        return false;
-
-    // Check with the HRTF spatialization system to see if it's finished loading.
-    return m_hrtfDatabaseLoader->isLoaded();
-}
-
 void AudioContext::stopDispatch(void* userData)
 {
     AudioContext* context = reinterpret_cast<AudioContext*>(userData);
     ASSERT(context);
     if (!context)
         return;
 
     context->uninitialize();
     context->clear();
 }
@@ skipping 775 matching lines @@
 }
 
 void AudioContext::decrementActiveSourceCount()
 {
     atomicDecrement(&m_activeSourceCount);
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)