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diff --git a/Source/WebKit2/WebProcess/Databases/WebToDatabaseProcessConnection.h b/Source/WebKit2/WebProcess/Databases/WebToDatabaseProcessConnection.h
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+++ b/Source/WebKit2/WebProcess/Databases/WebToDatabaseProcessConnection.h
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+/*
+ * Copyright (C) 2013 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE, INC. ``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 INC. OR
+ * 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 WebToDatabaseProcessConnection_h
+#define WebToDatabaseProcessConnection_h
+
+#include "Connection.h"
+#include "MessageSender.h"
+#include "WebIDBConnectionToServer.h"
+#include <WebCore/SessionID.h>
+#include <wtf/RefCounted.h>
+
+#if ENABLE(DATABASE_PROCESS)
+
+namespace WebCore {
+class SessionID;
+}
+
+namespace WebKit {
+
+class WebToDatabaseProcessConnection : public RefCounted<WebToDatabaseProcessConnection>, public IPC::Connection::Client, public IPC::MessageSender {
+public:
+    static Ref<WebToDatabaseProcessConnection> create(IPC::Connection::Identifier connectionIdentifier)
+    {
+        return adoptRef(*new WebToDatabaseProcessConnection(connectionIdentifier));
+    }
+    ~WebToDatabaseProcessConnection();
+    
+    IPC::Connection& connection() { return m_connection.get(); }
+
+#if ENABLE(INDEXED_DATABASE)
+    WebIDBConnectionToServer& idbConnectionToServerForSession(const WebCore::SessionID&);
+#endif
+
+private:
+    WebToDatabaseProcessConnection(IPC::Connection::Identifier);
+
+    // IPC::Connection::Client
+    void didReceiveMessage(IPC::Connection&, IPC::Decoder&) override;
+    void didClose(IPC::Connection&) override;
+    void didReceiveInvalidMessage(IPC::Connection&, IPC::StringReference messageReceiverName, IPC::StringReference messageName) override;
+
+    // IPC::MessageSender
+    IPC::Connection* messageSenderConnection() override { return m_connection.ptr(); }
+    uint64_t messageSenderDestinationID() override { return 0; }
+
+    Ref<IPC::Connection> m_connection;
+
+#if ENABLE(INDEXED_DATABASE)
+    HashMap<WebCore::SessionID, RefPtr<WebIDBConnectionToServer>> m_webIDBConnectionsBySession;
+    HashMap<uint64_t, RefPtr<WebIDBConnectionToServer>> m_webIDBConnectionsByIdentifier;
+#endif
+};
+
+} // namespace WebKit
+
+#endif // ENABLE(DATABASE_PROCESS)
+#endif // WebToDatabaseProcessConnection_h