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 e7257bfc62a98a5608bec9cc0f436c5f783f4ee5..3113fc0b28402aab9c658814438c9169d86844f7 100644
--- a/Source/modules/webaudio/AudioBufferSourceNode.cpp
+++ b/Source/modules/webaudio/AudioBufferSourceNode.cpp
@@ -50,9 +50,9 @@ 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)
@@ -495,6 +495,14 @@ void AudioBufferSourceNode::finish()
     AudioScheduledSourceNode::finish();
 }
 
+void AudioBufferSourceNode::trace(Visitor* visitor)
+{
+    visitor->trace(m_buffer);
+    visitor->trace(m_gain);
+    visitor->trace(m_playbackRate);
+    AudioNode::trace(visitor);
+}
+
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)