Move webaudio to oilpan

Source/modules/webaudio/AudioBufferSourceNode.cpp

Index: Source/modules/webaudio/AudioBufferSourceNode.cpp
diff --git a/Source/modules/webaudio/AudioBufferSourceNode.cpp b/Source/modules/webaudio/AudioBufferSourceNode.cpp
index a6f37e98d997c4996ad7e549e6b4bed46f00268e..c2dbc32bf24ab84d7e7b4077016a4ceac3b57369 100644
--- a/Source/modules/webaudio/AudioBufferSourceNode.cpp
+++ b/Source/modules/webaudio/AudioBufferSourceNode.cpp
@@ -49,9 +49,9 @@ const double DefaultGrainDuration = 0.020; // 20ms
 // 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)
@@ -475,6 +475,13 @@ void AudioBufferSourceNode::finish()
     AudioScheduledSourceNode::finish();
 }
 
+void AudioBufferSourceNode::trace(Visitor* visitor)
+{
+    visitor->trace(m_buffer);
+    visitor->trace(m_playbackRate);
+    AudioScheduledSourceNode::trace(visitor);
+}
+
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)