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diff --git a/Source/WTF/wtf/RunLoopTimer.h b/Source/WTF/wtf/RunLoopTimer.h
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+++ b/Source/WTF/wtf/RunLoopTimer.h
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+/*
+ * Copyright (C) 2009 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 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 RunLoopTimer_h
+#define RunLoopTimer_h
+
+#include <wtf/SchedulePair.h>
+#include <wtf/RetainPtr.h>
+
+namespace WTF {
+
+// Time intervals are all in seconds.
+
+class WTF_EXPORT_PRIVATE RunLoopTimerBase {
+    WTF_MAKE_NONCOPYABLE(RunLoopTimerBase);
+public:
+    RunLoopTimerBase() { }
+    WTF_EXPORT_PRIVATE virtual ~RunLoopTimerBase();
+
+    WTF_EXPORT_PRIVATE void schedule(const SchedulePair*);
+    WTF_EXPORT_PRIVATE void schedule(const SchedulePairHashSet&);
+
+    WTF_EXPORT_PRIVATE void start(double nextFireInterval, double repeatInterval);
+
+    void startRepeating(double repeatInterval) { start(repeatInterval, repeatInterval); }
+    void startOneShot(double interval) { start(interval, 0); }
+
+    WTF_EXPORT_PRIVATE void stop();
+    bool isActive() const;
+
+    virtual void fired() = 0;
+
+private:
+#if USE(CF)
+    RetainPtr<CFRunLoopTimerRef> m_timer;
+#endif
+};
+
+// FIXME: This doesn't have to be a class template.
+template <typename TimerFiredClass> class RunLoopTimer : public RunLoopTimerBase {
+public:
+    typedef void (TimerFiredClass::*TimerFiredFunction)();
+
+    RunLoopTimer(TimerFiredClass& o, TimerFiredFunction f)
+        : m_object(&o), m_function(f) { }
+
+    virtual void fired() { (m_object->*m_function)(); }
+
+private:
+    TimerFiredClass* m_object;
+    TimerFiredFunction m_function;
+};
+
+} // namespace WTF
+
+using WTF::RunLoopTimer;
+
+#endif