--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/storage/Database.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef Database_h
+#define Database_h
+
+#if ENABLE(DATABASE)
+#include "AbstractDatabase.h"
+#include "ExceptionCode.h"
+#include "PlatformString.h"
+
+#include <wtf/Deque.h>
+#include <wtf/Forward.h>
+
+namespace WebCore {
+
+class DatabaseCallback;
+class ScriptExecutionContext;
+class SecurityOrigin;
+class SQLTransaction;
+class SQLTransactionCallback;
+class SQLTransactionClient;
+class SQLTransactionCoordinator;
+class SQLTransactionErrorCallback;
+class VoidCallback;
+
+class Database : public AbstractDatabase {
+public:
+    virtual ~Database();
+
+    // Direct support for the DOM API
+    static PassRefPtr<Database> openDatabase(ScriptExecutionContext*, const String& name, const String& expectedVersion, const String& displayName,
+                                             unsigned long estimatedSize, PassRefPtr<DatabaseCallback>, ExceptionCode&);
+    virtual String version() const;
+    void changeVersion(const String& oldVersion, const String& newVersion, PassRefPtr<SQLTransactionCallback>,
+                       PassRefPtr<SQLTransactionErrorCallback>, PassRefPtr<VoidCallback> successCallback);
+    void transaction(PassRefPtr<SQLTransactionCallback>, PassRefPtr<SQLTransactionErrorCallback>,
+                     PassRefPtr<VoidCallback> successCallback, bool readOnly);
+
+    // Internal engine support
+    Vector<String> tableNames();
+
+    virtual SecurityOrigin* securityOrigin() const;
+
+    virtual void markAsDeletedAndClose();
+    bool deleted() const { return m_deleted; }
+
+    void close();
+    virtual void closeImmediately();
+
+    unsigned long long databaseSize() const;
+    unsigned long long maximumSize() const;
+
+    void scheduleTransactionCallback(SQLTransaction*);
+    void scheduleTransactionStep(SQLTransaction*, bool immediately = false);
+
+    SQLTransactionClient* transactionClient() const;
+    SQLTransactionCoordinator* transactionCoordinator() const;
+
+private:
+    class DatabaseOpenTask;
+    class DatabaseCloseTask;
+    class DatabaseTransactionTask;
+    class DatabaseTableNamesTask;
+
+    Database(ScriptExecutionContext*, const String& name, const String& expectedVersion,
+             const String& displayName, unsigned long estimatedSize);
+
+    bool openAndVerifyVersion(bool setVersionInNewDatabase, ExceptionCode&);
+    virtual bool performOpenAndVerify(bool setVersionInNewDatabase, ExceptionCode&);
+
+    void inProgressTransactionCompleted();
+    void scheduleTransaction();
+
+    Vector<String> performGetTableNames();
+
+    static void deliverPendingCallback(void*);
+
+    Deque<RefPtr<SQLTransaction> > m_transactionQueue;
+    Mutex m_transactionInProgressMutex;
+    bool m_transactionInProgress;
+    bool m_isTransactionQueueEnabled;
+
+    RefPtr<SecurityOrigin> m_databaseThreadSecurityOrigin;
+
+    bool m_deleted;
+};
+
+} // namespace WebCore
+
+#endif // ENABLE(DATABASE)
+
+#endif // Database_h