Remove dead code related to Web Audio doppler effects

third_party/WebKit/Source/modules/webaudio/AudioListener.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
@@ skipping 20 matching lines @@
 #include "platform/audio/AudioBus.h"
 #include "platform/audio/HRTFDatabaseLoader.h"
 #include "wtf/MainThread.h"
 
 namespace blink {
 
 AudioListener::AudioListener()
     : m_position(0, 0, 0)
     , m_orientation(0, 0, -1)
     , m_upVector(0, 1, 0)
-    , m_velocity(0, 0, 0)
     , m_dopplerFactor(1)
     , m_speedOfSound(343.3)
 {
 }
 
 AudioListener::~AudioListener()
 {
 }
 
 DEFINE_TRACE(AudioListener)
@@ skipping 37 matching lines @@
 }
 
 void AudioListener::setPosition(const FloatPoint3D& position)
 {
     if (m_position == position)
         return;
 
     // This synchronizes with panner's process().
     MutexLocker listenerLocker(m_listenerLock);
     m_position = position;
-    markPannersAsDirty(PannerHandler::AzimuthElevationDirty | PannerHandler::DistanceConeGainDirty | PannerHandler::DopplerRateDirty);
+    markPannersAsDirty(PannerHandler::AzimuthElevationDirty | PannerHandler::DistanceConeGainDirty);
 }
 
 void AudioListener::setOrientation(const FloatPoint3D& orientation)
 {
     if (m_orientation == orientation)
         return;
 
     // This synchronizes with panner's process().
     MutexLocker listenerLocker(m_listenerLock);
     m_orientation = orientation;
     markPannersAsDirty(PannerHandler::AzimuthElevationDirty);
 }
 
 void AudioListener::setUpVector(const FloatPoint3D& upVector)
 {
     if (m_upVector == upVector)
         return;
 
     // This synchronizes with panner's process().
     MutexLocker listenerLocker(m_listenerLock);
     m_upVector = upVector;
     markPannersAsDirty(PannerHandler::AzimuthElevationDirty);
 }
 
-void AudioListener::setVelocity(const FloatPoint3D& velocity)
+void AudioListener::setVelocity(float x, float y, float z)
 {
-    if (m_velocity == velocity)
-        return;
-
-    // This synchronizes with panner's process().
-    MutexLocker listenerLocker(m_listenerLock);
-    m_velocity = velocity;
-    markPannersAsDirty(PannerHandler::DopplerRateDirty);
+    // The velocity is not used internally and cannot be read back by scripts,
+    // so it can be ignored entirely.
 }
 
 void AudioListener::setDopplerFactor(double dopplerFactor)
 {
-    if (m_dopplerFactor == dopplerFactor)
-        return;
-
-    // This synchronizes with panner's process().
-    MutexLocker listenerLocker(m_listenerLock);
     m_dopplerFactor = dopplerFactor;
-    markPannersAsDirty(PannerHandler::DopplerRateDirty);
 }
 
 void AudioListener::setSpeedOfSound(double speedOfSound)
 {
-    if (m_speedOfSound == speedOfSound)
-        return;
-
-    // This synchronizes with panner's process().
-    MutexLocker listenerLocker(m_listenerLock);
     m_speedOfSound = speedOfSound;
-    markPannersAsDirty(PannerHandler::DopplerRateDirty);
 }
 
 } // namespace blink
-