Support multiple HRTFDatabases for different sample-rates

Source/modules/webaudio/PannerNode.cpp

Index: Source/modules/webaudio/PannerNode.cpp
diff --git a/Source/modules/webaudio/PannerNode.cpp b/Source/modules/webaudio/PannerNode.cpp
index 147126b676dac9a2e04924b0f655dd9e90abf220..f14718b9b0528457d84ddac4286e2003b010fb3f 100644
--- a/Source/modules/webaudio/PannerNode.cpp
+++ b/Source/modules/webaudio/PannerNode.cpp
@@ -144,8 +144,8 @@ void PannerNode::initialize()
 {
     if (isInitialized())
         return;
-        
-    m_panner = Panner::create(m_panningModel, sampleRate());
+
+    m_panner = Panner::create(m_panningModel, sampleRate(), context()->hrtfDatabaseLoader());
 
     AudioNode::initialize();
 }
@@ -199,8 +199,8 @@ bool PannerNode::setPanningModel(unsigned model)
         if (!m_panner.get() || model != m_panningModel) {
             // This synchronizes with process().
             MutexLocker processLocker(m_pannerLock);
-            
-            OwnPtr<Panner> newPanner = Panner::create(model, sampleRate());
+
+            OwnPtr<Panner> newPanner = Panner::create(model, sampleRate(), context()->hrtfDatabaseLoader());
             m_panner = newPanner.release();
             m_panningModel = model;
         }