Move webaudio to oilpan

Source/modules/webaudio/ScriptProcessorNode.cpp

Index: Source/modules/webaudio/ScriptProcessorNode.cpp
diff --git a/Source/modules/webaudio/ScriptProcessorNode.cpp b/Source/modules/webaudio/ScriptProcessorNode.cpp
index e7fa915e8ab8d17e0fff06f863b0623ef0fc5f0b..2abe051793a903591880b12cad7f4f5c3dab29b8 100644
--- a/Source/modules/webaudio/ScriptProcessorNode.cpp
+++ b/Source/modules/webaudio/ScriptProcessorNode.cpp
@@ -56,7 +56,7 @@ static size_t chooseBufferSize()
     return bufferSize;
 }
 
-PassRefPtr<ScriptProcessorNode> ScriptProcessorNode::create(AudioContext* context, float sampleRate, size_t bufferSize, unsigned numberOfInputChannels, unsigned numberOfOutputChannels)
+PassRefPtrWillBeRawPtr<ScriptProcessorNode> ScriptProcessorNode::create(AudioContext* context, float sampleRate, size_t bufferSize, unsigned numberOfInputChannels, unsigned numberOfOutputChannels)
 {
     // Check for valid buffer size.
     switch (bufferSize) {
@@ -84,7 +84,7 @@ PassRefPtr<ScriptProcessorNode> ScriptProcessorNode::create(AudioContext* contex
     if (numberOfOutputChannels > AudioContext::maxNumberOfChannels())
         return nullptr;
 
-    return adoptRef(new ScriptProcessorNode(context, sampleRate, bufferSize, numberOfInputChannels, numberOfOutputChannels));
+    return adoptRefWillBeRefCountedGarbageCollected(new ScriptProcessorNode(context, sampleRate, bufferSize, numberOfInputChannels, numberOfOutputChannels));
 }
 
 ScriptProcessorNode::ScriptProcessorNode(AudioContext* context, float sampleRate, size_t bufferSize, unsigned numberOfInputChannels, unsigned numberOfOutputChannels)
@@ -96,6 +96,9 @@ ScriptProcessorNode::ScriptProcessorNode(AudioContext* context, float sampleRate
     , m_numberOfInputChannels(numberOfInputChannels)
     , m_numberOfOutputChannels(numberOfOutputChannels)
     , m_internalInputBus(AudioBus::create(numberOfInputChannels, AudioNode::ProcessingSizeInFrames, false))
+#if ENABLE(OILPAN)
+    , m_keepAlive(adoptPtr(new Persistent<AudioNode>(this)))
+#endif
 {
     ScriptWrappable::init(this);
     // Regardless of the allowed buffer sizes, we still need to process at the granularity of the AudioNode.
@@ -127,8 +130,8 @@ void ScriptProcessorNode::initialize()
     // Create double buffers on both the input and output sides.
     // These AudioBuffers will be directly accessed in the main thread by JavaScript.
     for (unsigned i = 0; i < 2; ++i) {
-        RefPtr<AudioBuffer> inputBuffer = m_numberOfInputChannels ? AudioBuffer::create(m_numberOfInputChannels, bufferSize(), sampleRate) : nullptr;
-        RefPtr<AudioBuffer> outputBuffer = m_numberOfOutputChannels ? AudioBuffer::create(m_numberOfOutputChannels, bufferSize(), sampleRate) : nullptr;
+        RefPtrWillBeRawPtr<AudioBuffer> inputBuffer = m_numberOfInputChannels ? AudioBuffer::create(m_numberOfInputChannels, bufferSize(), sampleRate) : nullptr;
+        RefPtrWillBeRawPtr<AudioBuffer> outputBuffer = m_numberOfOutputChannels ? AudioBuffer::create(m_numberOfOutputChannels, bufferSize(), sampleRate) : nullptr;
 
         m_inputBuffers.append(inputBuffer);
         m_outputBuffers.append(outputBuffer);
@@ -280,6 +283,21 @@ double ScriptProcessorNode::latencyTime() const
     return std::numeric_limits<double>::infinity();
 }
 
+#if ENABLE(OILPAN)
+void ScriptProcessorNode::clearKeepAlive()
+{
+    ASSERT(m_keepAlive);
+    m_keepAlive = nullptr;
+}
+#endif
+
+void ScriptProcessorNode::trace(Visitor* visitor)
+{
+    visitor->trace(m_inputBuffers);
+    visitor->trace(m_outputBuffers);
+    AudioNode::trace(visitor);
+}
+
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)