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diff --git a/Source/WebCore/dom/ScriptedAnimationController.h b/Source/WebCore/dom/ScriptedAnimationController.h
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+/*
+ * Copyright (C) 2011 Google 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 ScriptedAnimationController_h
+#define ScriptedAnimationController_h
+
+#if ENABLE(REQUEST_ANIMATION_FRAME)
+#include "DOMTimeStamp.h"
+#include <wtf/Noncopyable.h>
+#include <wtf/PassOwnPtr.h>
+#include <wtf/RefPtr.h>
+#include <wtf/Vector.h>
+
+namespace WebCore {
+
+class Document;
+class Element;
+class RequestAnimationFrameCallback;
+
+class ScriptedAnimationController {
+WTF_MAKE_NONCOPYABLE(ScriptedAnimationController);
+public:
+    static PassOwnPtr<ScriptedAnimationController> create(Document* document)
+    {
+        return adoptPtr(new ScriptedAnimationController(document));
+    }
+
+    typedef int CallbackId;
+
+    CallbackId registerCallback(PassRefPtr<RequestAnimationFrameCallback>, Element*);
+    void cancelCallback(CallbackId);
+    void serviceScriptedAnimations(DOMTimeStamp);
+
+    void suspend();
+    void resume();
+
+private:
+    explicit ScriptedAnimationController(Document*);
+    typedef Vector<RefPtr<RequestAnimationFrameCallback> > CallbackList;
+    CallbackList m_callbacks;
+
+    Document* m_document;
+    CallbackId m_nextCallbackId;
+    int m_suspendCount;
+};
+
+}
+
+#endif // ENABLE(REQUEST_ANIMATION_FRAME)
+
+#endif // ScriptedAnimationController_h
+