Add dataLoss property to IDB's upgradeneeded event

Source/modules/indexeddb/IDBVersionChangeEvent.h

Index: Source/modules/indexeddb/IDBVersionChangeEvent.h
diff --git a/Source/modules/indexeddb/IDBVersionChangeEvent.h b/Source/modules/indexeddb/IDBVersionChangeEvent.h
index 7c9765a1b5bcb64e331a6d12cec50101a6d460da..1e2e0dc1395c01899f3f719eee26d867174dd910 100644
--- a/Source/modules/indexeddb/IDBVersionChangeEvent.h
+++ b/Source/modules/indexeddb/IDBVersionChangeEvent.h
@@ -36,19 +36,21 @@ namespace WebCore {
 
 class IDBVersionChangeEvent : public Event {
 public:
-    static PassRefPtr<IDBVersionChangeEvent> create(PassRefPtr<IDBAny> oldVersion = IDBAny::createNull(), PassRefPtr<IDBAny> newVersion = IDBAny::createNull(), const AtomicString& eventType = AtomicString());
+    static PassRefPtr<IDBVersionChangeEvent> create(PassRefPtr<IDBAny> oldVersion = IDBAny::createNull(), PassRefPtr<IDBAny> newVersion = IDBAny::createNull(), const AtomicString& eventType = AtomicString(), bool dataLoss = 0);
     virtual ~IDBVersionChangeEvent();
 
     virtual PassRefPtr<IDBAny> oldVersion() { return m_oldVersion; }
     virtual PassRefPtr<IDBAny> newVersion() { return m_newVersion; }
+    virtual String dataLoss();
 
     virtual const AtomicString& interfaceName() const;
 
 private:
-    IDBVersionChangeEvent(PassRefPtr<IDBAny> oldVersion, PassRefPtr<IDBAny> newVersion, const AtomicString& eventType);
+    IDBVersionChangeEvent(PassRefPtr<IDBAny> oldVersion, PassRefPtr<IDBAny> newVersion, const AtomicString& eventType, bool dataLoss);
 
     RefPtr<IDBAny> m_oldVersion;
     RefPtr<IDBAny> m_newVersion;
+    bool m_dataLoss;
 };
 
 } // namespace WebCore