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

Source/modules/indexeddb/IDBTransactionBackendImpl.h

Index: Source/modules/indexeddb/IDBTransactionBackendImpl.h
diff --git a/Source/modules/indexeddb/IDBTransactionBackendImpl.h b/Source/modules/indexeddb/IDBTransactionBackendImpl.h
index 4a8ad684b0c83a764107f114e807d2bbd3206753..c1ddbfb7263f0a2fa3196a5a43c82c8ca75dd670 100644
--- a/Source/modules/indexeddb/IDBTransactionBackendImpl.h
+++ b/Source/modules/indexeddb/IDBTransactionBackendImpl.h
@@ -42,7 +42,7 @@ class IDBDatabaseCallbacks;
 
 class IDBTransactionBackendImpl : public RefCounted<IDBTransactionBackendImpl> {
 public:
-    static PassRefPtr<IDBTransactionBackendImpl> create(int64_t transactionId, PassRefPtr<IDBDatabaseCallbacks>, const Vector<int64_t>&, IndexedDB::TransactionMode, IDBDatabaseBackendImpl*);
+    static PassRefPtr<IDBTransactionBackendImpl> create(int64_t transactionId, IDBDatabaseCallbacks*, const Vector<int64_t>&, IndexedDB::TransactionMode, IDBDatabaseBackendImpl*);
     virtual ~IDBTransactionBackendImpl();
 
     virtual void abort();
@@ -67,11 +67,11 @@ public:
     IDBBackingStore::Transaction* backingStoreTransaction() { return &m_transaction; }
     int64_t id() const { return m_id; }
 
-    IDBDatabaseBackendImpl* database() const { return m_database.get(); }
-    IDBDatabaseCallbacks* connection() const { return m_callbacks.get(); }
+    IDBDatabaseBackendImpl* database() const { return m_database.raw(); }
+    IDBDatabaseCallbacks* connection() const { return m_callbacks.raw(); }
 
 private:
-    IDBTransactionBackendImpl(int64_t id, PassRefPtr<IDBDatabaseCallbacks>, const HashSet<int64_t>& objectStoreIds, IndexedDB::TransactionMode, IDBDatabaseBackendImpl*);
+    IDBTransactionBackendImpl(int64_t id, IDBDatabaseCallbacks*, const HashSet<int64_t>& objectStoreIds, IndexedDB::TransactionMode, IDBDatabaseBackendImpl*);
 
     enum State {
         Unused, // Created, but no tasks yet.
@@ -94,8 +94,8 @@ private:
 
     State m_state;
     bool m_commitPending;
-    RefPtr<IDBDatabaseCallbacks> m_callbacks;
-    RefPtr<IDBDatabaseBackendImpl> m_database;
+    Persistent<IDBDatabaseCallbacks> m_callbacks;
+    Persistent<IDBDatabaseBackendImpl> m_database;
 
     typedef Deque<OwnPtr<Operation> > TaskQueue;
     TaskQueue m_taskQueue;