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diff --git a/Source/WebCore/Modules/speech/SpeechSynthesisUtterance.h b/Source/WebCore/Modules/speech/SpeechSynthesisUtterance.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.
+ */
+
+#pragma once
+
+#if ENABLE(SPEECH_SYNTHESIS)
+
+#include "ContextDestructionObserver.h"
+#include "EventTarget.h"
+#include "PlatformSpeechSynthesisUtterance.h"
+#include "SpeechSynthesisVoice.h"
+#include <wtf/RefCounted.h>
+
+namespace WebCore {
+
+class SpeechSynthesisUtterance final : public PlatformSpeechSynthesisUtteranceClient, public RefCounted<SpeechSynthesisUtterance>, public ContextDestructionObserver, public EventTargetWithInlineData {
+public:
+    static Ref<SpeechSynthesisUtterance> create(ScriptExecutionContext&, const String&);
+
+    virtual ~SpeechSynthesisUtterance();
+
+    const String& text() const { return m_platformUtterance->text(); }
+    void setText(const String& text) { m_platformUtterance->setText(text); }
+
+    const String& lang() const { return m_platformUtterance->lang(); }
+    void setLang(const String& lang) { m_platformUtterance->setLang(lang); }
+
+    SpeechSynthesisVoice* voice() const;
+    void setVoice(SpeechSynthesisVoice*);
+
+    float volume() const { return m_platformUtterance->volume(); }
+    void setVolume(float volume) { m_platformUtterance->setVolume(volume); }
+
+    float rate() const { return m_platformUtterance->rate(); }
+    void setRate(float rate) { m_platformUtterance->setRate(rate); }
+
+    float pitch() const { return m_platformUtterance->pitch(); }
+    void setPitch(float pitch) { m_platformUtterance->setPitch(pitch); }
+
+    double startTime() const { return m_platformUtterance->startTime(); }
+    void setStartTime(double startTime) { m_platformUtterance->setStartTime(startTime); }
+
+    using RefCounted::ref;
+    using RefCounted::deref;
+
+    PlatformSpeechSynthesisUtterance* platformUtterance() const { return m_platformUtterance.get(); }
+
+private:
+    SpeechSynthesisUtterance(ScriptExecutionContext&, const String&);
+
+    ScriptExecutionContext* scriptExecutionContext() const final { return ContextDestructionObserver::scriptExecutionContext(); }
+    EventTargetInterface eventTargetInterface() const final { return SpeechSynthesisUtteranceEventTargetInterfaceType; }
+    void refEventTarget() final { ref(); }
+    void derefEventTarget() final { deref(); }
+
+    RefPtr<PlatformSpeechSynthesisUtterance> m_platformUtterance;
+    RefPtr<SpeechSynthesisVoice> m_voice;
+};
+
+} // namespace WebCore
+
+#endif // ENABLE(SPEECH_SYNTHESIS)