Move mediastream module to oilpan transition types

Source/modules/mediastream/NavigatorUserMediaError.h

Index: Source/modules/mediastream/NavigatorUserMediaError.h
diff --git a/Source/modules/mediastream/NavigatorUserMediaError.h b/Source/modules/mediastream/NavigatorUserMediaError.h
index 928aa90fa4870b0e9f75b5bbbb0c823a9fa54564..69b1141a0a3b21b090b10f4aead757bc3255694e 100644
--- a/Source/modules/mediastream/NavigatorUserMediaError.h
+++ b/Source/modules/mediastream/NavigatorUserMediaError.h
@@ -32,22 +32,24 @@
 
 namespace WebCore {
 
-class NavigatorUserMediaError FINAL : public RefCounted<NavigatorUserMediaError>, public ScriptWrappable {
+class NavigatorUserMediaError FINAL : public RefCountedWillBeGarbageCollectedFinalized<NavigatorUserMediaError>, public ScriptWrappable {
 public:
     enum Name {
         NamePermissionDenied,
         NameConstraintNotSatisfied
     };
 
-    static PassRefPtr<NavigatorUserMediaError> create(Name name, const String& message, const String& constraintName)
+    static PassRefPtrWillBeRawPtr<NavigatorUserMediaError> create(Name name, const String& message, const String& constraintName)
     {
-        return adoptRef(new NavigatorUserMediaError(name, message, constraintName));
+        return adoptRefWillBeNoop(new NavigatorUserMediaError(name, message, constraintName));
     }
 
     String name() const;
     const String& message() const { return m_message; }
     const String& constraintName() const { return m_constraintName; }
 
+    void trace(Visitor*) { }
+
 private:
     NavigatorUserMediaError(Name name, const String& message, const String& constraintName)
         : m_name(name), m_message(message), m_constraintName(constraintName)