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diff --git a/Source/WebKit2/UIProcess/Launcher/ThreadLauncher.h b/Source/WebKit2/UIProcess/Launcher/ThreadLauncher.h
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+++ b/Source/WebKit2/UIProcess/Launcher/ThreadLauncher.h
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+/*
+ * Copyright (C) 2010 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. 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 INC. 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 ThreadLauncher_h
+#define ThreadLauncher_h
+
+#include "Connection.h"
+#include "PlatformProcessIdentifier.h"
+#include <wtf/RefPtr.h>
+#include <wtf/Threading.h>
+
+#if PLATFORM(QT)
+class QLocalSocket;
+#endif
+
+namespace WebKit {
+
+class ThreadLauncher : public ThreadSafeShared<ThreadLauncher> {
+public:
+    class Client {
+    public:
+        virtual ~Client() { }
+        virtual void didFinishLaunching(ThreadLauncher*, CoreIPC::Connection::Identifier) = 0;
+    };
+    
+    static PassRefPtr<ThreadLauncher> create(Client* client)
+    {
+        return adoptRef(new ThreadLauncher(client));
+    }
+
+    bool isLaunching() const { return m_isLaunching; }
+
+    void invalidate();
+
+private:
+    explicit ThreadLauncher(Client*);
+
+    void launchThread();
+    void didFinishLaunchingThread(CoreIPC::Connection::Identifier);
+
+    static CoreIPC::Connection::Identifier createWebThread();
+
+    bool m_isLaunching;
+    Client* m_client;
+};
+
+} // namespace WebKit
+
+#endif // ThreadLauncher_h