Remove enum types which are duplicated and cause error on webkit style checker.

Source/modules/webaudio/PannerNode.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 107 matching lines @@
         destination->zero();
         return;
     }
 
     // The audio thread can't block on this lock, so we call tryLock() instead.
     MutexTryLocker tryLocker(m_processLock);
     MutexTryLocker tryListenerLocker(listener()->listenerLock());
 
     if (tryLocker.locked() && tryListenerLocker.locked()) {
         // HRTFDatabase should be loaded before proceeding for offline audio context when the panning model is HRTF.
-        if (m_panningModel == HRTF && !m_hrtfDatabaseLoader->isLoaded()) {
+        if (m_panningModel == Panner::PanningModelHRTF && !m_hrtfDatabaseLoader->isLoaded()) {
             if (context()->isOfflineContext()) {
                 m_hrtfDatabaseLoader->waitForLoaderThreadCompletion();
             } else {
                 destination->zero();
                 return;
             }
         }
 
         // Apply the panning effect.
         double azimuth;
@@ skipping 41 matching lines @@
 }
 
 AudioListener* PannerNode::listener()
 {
     return context()->listener();
 }
 
 String PannerNode::panningModel() const
 {
     switch (m_panningModel) {
-    case EQUALPOWER:
+    case Panner::PanningModelEqualPower:
         return "equalpower";
-    case HRTF:
+    case Panner::PanningModelHRTF:
         return "HRTF";
     default:
         ASSERT_NOT_REACHED();
         return "HRTF";
     }
 }
 
 void PannerNode::setPanningModel(const String& model)
 {
     if (model == "equalpower")
-        setPanningModel(EQUALPOWER);
+        setPanningModel(Panner::PanningModelEqualPower);
     else if (model == "HRTF")
-        setPanningModel(HRTF);
+        setPanningModel(Panner::PanningModelHRTF);
 }
 
 bool PannerNode::setPanningModel(unsigned model)
 {
     switch (model) {
-    case EQUALPOWER:
-    case HRTF:
+    case Panner::PanningModelEqualPower:
+    case Panner::PanningModelHRTF:
         if (!m_panner.get() || model != m_panningModel) {
             // This synchronizes with process().
             MutexLocker processLocker(m_processLock);
             OwnPtr<Panner> newPanner = Panner::create(model, sampleRate(), m_hrtfDatabaseLoader.get());
             m_panner = newPanner.release();
             m_panningModel = model;
         }
         break;
     default:
+        ASSERT_NOT_REACHED();
         return false;
     }
 
     return true;
 }
 
 String PannerNode::distanceModel() const
 {
     switch (const_cast<PannerNode*>(this)->m_distanceEffect.model()) {
     case DistanceEffect::ModelLinear:
@@ skipping 25 matching lines @@
     case DistanceEffect::ModelInverse:
     case DistanceEffect::ModelExponential:
         if (model != m_distanceModel) {
             // This synchronizes with process().
             MutexLocker processLocker(m_processLock);
             m_distanceEffect.setModel(static_cast<DistanceEffect::ModelType>(model), true);
             m_distanceModel = model;
         }
         break;
     default:
+        ASSERT_NOT_REACHED();
         return false;
     }
 
     return true;
 }
 
 void PannerNode::setRefDistance(double distance)
 {
     if (refDistance() == distance)
         return;
@@ skipping 294 matching lines @@
                     notifyAudioSourcesConnectedToNode(connectedNode, visitedNodes); // recurse
                 }
             }
         }
     }
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)