Move webaudio to oilpan

Source/modules/webaudio/PeriodicWave.h

Index: Source/modules/webaudio/PeriodicWave.h
diff --git a/Source/modules/webaudio/PeriodicWave.h b/Source/modules/webaudio/PeriodicWave.h
index bcb5776cf75574058b7040b587d44cc059980eb9..1e62820f3ff955251f2e329798c943776e1049e6 100644
--- a/Source/modules/webaudio/PeriodicWave.h
+++ b/Source/modules/webaudio/PeriodicWave.h
@@ -40,15 +40,15 @@
 
 namespace WebCore {
 
-class PeriodicWave : public ScriptWrappable, public RefCounted<PeriodicWave> {
+class PeriodicWave : public RefCountedWillBeGarbageCollectedFinalized<PeriodicWave>, public ScriptWrappable {
 public:
-    static PassRefPtr<PeriodicWave> createSine(float sampleRate);
-    static PassRefPtr<PeriodicWave> createSquare(float sampleRate);
-    static PassRefPtr<PeriodicWave> createSawtooth(float sampleRate);
-    static PassRefPtr<PeriodicWave> createTriangle(float sampleRate);
+    static PassRefPtrWillBeRawPtr<PeriodicWave> createSine(float sampleRate);
+    static PassRefPtrWillBeRawPtr<PeriodicWave> createSquare(float sampleRate);
+    static PassRefPtrWillBeRawPtr<PeriodicWave> createSawtooth(float sampleRate);
+    static PassRefPtrWillBeRawPtr<PeriodicWave> createTriangle(float sampleRate);
 
     // Creates an arbitrary periodic wave given the frequency components (Fourier coefficients).
-    static PassRefPtr<PeriodicWave> create(float sampleRate, Float32Array* real, Float32Array* imag);
+    static PassRefPtrWillBeRawPtr<PeriodicWave> create(float sampleRate, Float32Array* real, Float32Array* imag);
 
     // Returns pointers to the lower and higher wave data for the pitch range containing
     // the given fundamental frequency. These two tables are in adjacent "pitch" ranges
@@ -63,6 +63,8 @@ public:
 
     unsigned periodicWaveSize() const { return m_periodicWaveSize; }
 
+    void trace(Visitor*) { }
+
 private:
     explicit PeriodicWave(float sampleRate);