Move webaudio to oilpan

Source/modules/webaudio/AudioBufferSourceNode.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 32 matching lines @@
 
 namespace WebCore {
 
 const double DefaultGrainDuration = 0.020; // 20ms
 
 // Arbitrary upper limit on playback rate.
 // Higher than expected rates can be useful when playing back oversampled buffers
 // to minimize linear interpolation aliasing.
 const double MaxRate = 1024;
 
-PassRefPtr<AudioBufferSourceNode> AudioBufferSourceNode::create(AudioContext* context, float sampleRate)
+PassRefPtrWillBeRawPtr<AudioBufferSourceNode> AudioBufferSourceNode::create(AudioContext* context, float sampleRate)
 {
-    return adoptRef(new AudioBufferSourceNode(context, sampleRate));
+    return adoptRefWillBeNoop(new AudioBufferSourceNode(context, sampleRate));
 }
 
 AudioBufferSourceNode::AudioBufferSourceNode(AudioContext* context, float sampleRate)
     : AudioScheduledSourceNode(context, sampleRate)
     , m_buffer(nullptr)
     , m_isLooping(false)
     , m_loopStart(0)
     , m_loopEnd(0)
     , m_virtualReadIndex(0)
     , m_isGrain(false)
@@ skipping 407 matching lines @@
     if (m_pannerNode != pannerNode && !hasFinished()) {
         if (pannerNode)
             pannerNode->ref(AudioNode::RefTypeConnection);
         if (m_pannerNode)
             m_pannerNode->deref(AudioNode::RefTypeConnection);
 
         m_pannerNode = pannerNode;
     }
 }
 
 void AudioBufferSourceNode::clearPannerNode()

[haraken, 2014/03/27 11:44:05]

If you move m_pannerNode to RawPtrWillBeMember<>, you need to be careful about
what clearPannerNode() does because clearPannerNode() is called in
~AudioBufferSourceNode().

 {
     if (m_pannerNode) {
         m_pannerNode->deref(AudioNode::RefTypeConnection);
         m_pannerNode = 0;
     }
 }
 
 void AudioBufferSourceNode::finish()
 {
     clearPannerNode();
     ASSERT(!m_pannerNode);
     AudioScheduledSourceNode::finish();
 }
 
+void AudioBufferSourceNode::trace(Visitor* visitor)
+{
+    visitor->trace(m_buffer);
+    visitor->trace(m_gain);
+    visitor->trace(m_playbackRate);
+    AudioNode::trace(visitor);

[haraken, 2014/03/27 11:44:05]

AudioScheduledSourceNode::trace(visitor) ?

[keishi, 2014/04/03 06:53:19]

Done.

+}
+
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)