[oilpan] Move IDBDatabase, IDBDatabaseCallbacks, IDBDatabaseBackendInterface and other related clas…

Source/modules/indexeddb/IDBTransaction.h

Index: Source/modules/indexeddb/IDBTransaction.h
diff --git a/Source/modules/indexeddb/IDBTransaction.h b/Source/modules/indexeddb/IDBTransaction.h
index 915823f75b1496930a2b39557146fcac9a373426..1d302699d81540937101bd89ccdff0cba3d5b66b 100644
--- a/Source/modules/indexeddb/IDBTransaction.h
+++ b/Source/modules/indexeddb/IDBTransaction.h
@@ -56,7 +56,7 @@ public:
     static PassRefPtr<IDBTransaction> create(ScriptExecutionContext*, int64_t, IDBDatabase*, IDBOpenDBRequest*, const IDBDatabaseMetadata& previousMetadata);
     virtual ~IDBTransaction();
 
-    virtual void trace(Visitor*) { }
+    virtual void trace(Visitor*);
 
     virtual void visitWith(Visitor* visitor) const OVERRIDE
     {
@@ -82,7 +82,7 @@ public:
 
     // Implement the IDBTransaction IDL
     const String& mode() const;
-    IDBDatabase* db() const { return m_database.get(); }
+    IDBDatabase* db() const { return m_database; }
     PassRefPtr<DOMError> error() const { return m_error; }
     PassRefPtr<IDBObjectStore> objectStore(const String& name, ExceptionCode&);
     void abort(ExceptionCode&);
@@ -148,7 +148,7 @@ private:
     };
 
     int64_t m_id;
-    RefPtr<IDBDatabase> m_database;
+    Member<IDBDatabase> m_database;
     const Vector<String> m_objectStoreNames;
     IDBOpenDBRequest* m_openDBRequest;
     const IndexedDB::TransactionMode m_mode;
@@ -158,7 +158,7 @@ private:
     RefPtr<DOMError> m_error;
     String m_errorMessage;
 
-    ListHashSet<RefPtr<IDBRequest> > m_requestList;
+    ListHashSet<Member<IDBRequest> > m_requestList;
 
     typedef HashMap<String, RefPtr<IDBObjectStore> > IDBObjectStoreMap;
     IDBObjectStoreMap m_objectStoreMap;