Implement IDBVersionChangeEvent ctor w/ IDBVersionChangeEventInit dict

Source/modules/indexeddb/IDBVersionChangeEvent.cpp

Index: Source/modules/indexeddb/IDBVersionChangeEvent.cpp
diff --git a/Source/modules/indexeddb/IDBVersionChangeEvent.cpp b/Source/modules/indexeddb/IDBVersionChangeEvent.cpp
index 798b9ac4c4085a7fa209cdd74681dca24540fe2a..db63a8b5a45350aa9828484cb9b66b73ca358989 100644
--- a/Source/modules/indexeddb/IDBVersionChangeEvent.cpp
+++ b/Source/modules/indexeddb/IDBVersionChangeEvent.cpp
@@ -31,12 +31,20 @@
 
 namespace WebCore {
 
-PassRefPtr<IDBVersionChangeEvent> IDBVersionChangeEvent::create(PassRefPtr<IDBAny> oldVersion, PassRefPtr<IDBAny> newVersion, const AtomicString& eventType, blink::WebIDBDataLoss dataLoss, const String& dataLossMessage)
+
+IDBVersionChangeEventInit::IDBVersionChangeEventInit()
+    : oldVersion(0)
+    , newVersion(0)
 {
-    return adoptRef(new IDBVersionChangeEvent(oldVersion, newVersion, eventType, dataLoss, dataLossMessage));
 }
 
-IDBVersionChangeEvent::IDBVersionChangeEvent(PassRefPtr<IDBAny> oldVersion, PassRefPtr<IDBAny> newVersion, const AtomicString& eventType, blink::WebIDBDataLoss dataLoss, const String& dataLossMessage)
+IDBVersionChangeEvent::IDBVersionChangeEvent()
+    : m_dataLoss(blink::WebIDBDataLossNone)
+{
+    ScriptWrappable::init(this);
+}
+
+IDBVersionChangeEvent::IDBVersionChangeEvent(const AtomicString& eventType, PassRefPtr<SerializedScriptValue> oldVersion, PassRefPtr<SerializedScriptValue> newVersion, blink::WebIDBDataLoss dataLoss, const String& dataLossMessage)
     : Event(eventType, false /*canBubble*/, false /*cancelable*/)
     , m_oldVersion(oldVersion)
     , m_newVersion(newVersion)
@@ -46,20 +54,13 @@ IDBVersionChangeEvent::IDBVersionChangeEvent(PassRefPtr<IDBAny> oldVersion, Pass
     ScriptWrappable::init(this);
 }
 
-IDBVersionChangeEvent::~IDBVersionChangeEvent()
-{
-}
-
-ScriptValue IDBVersionChangeEvent::oldVersion(ExecutionContext* context) const
-{
-    DOMRequestState requestState(context);
-    return idbAnyToScriptValue(&requestState, m_oldVersion);
-}
-
-ScriptValue IDBVersionChangeEvent::newVersion(ExecutionContext* context) const
+IDBVersionChangeEvent::IDBVersionChangeEvent(const AtomicString& eventType, const IDBVersionChangeEventInit& initializer)
+    : Event(eventType, false /*canBubble*/, false /*cancelable*/)
+    , m_oldVersion(SerializedScriptValue::numberValue(initializer.oldVersion))
+    , m_newVersion(SerializedScriptValue::numberValue(initializer.newVersion))
+    , m_dataLoss(blink::WebIDBDataLossNone)
 {
-    DOMRequestState requestState(context);
-    return idbAnyToScriptValue(&requestState, m_newVersion);
+    ScriptWrappable::init(this);
 }
 
 const AtomicString& IDBVersionChangeEvent::dataLoss() const