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diff --git a/Tools/TestWebKitAPI/Tests/WTF/Functional.cpp b/Tools/TestWebKitAPI/Tests/WTF/Functional.cpp
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+++ b/Tools/TestWebKitAPI/Tests/WTF/Functional.cpp
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+/*
+ * Copyright (C) 2011 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.
+ */
+
+#include "config.h"
+#include <wtf/RefCounted.h>
+#include <wtf/Functional.h>
+
+namespace TestWebKitAPI {
+
+static int returnFortyTwo()
+{
+    return 42;
+}
+
+TEST(FunctionalTest, Basic)
+{
+    Function<int ()> emptyFunction;
+    ASSERT_TRUE(emptyFunction.isNull());
+
+    Function<int ()> returnFortyTwoFunction = bind(returnFortyTwo);
+    ASSERT_FALSE(returnFortyTwoFunction.isNull());
+    ASSERT_EQ(42, returnFortyTwoFunction());
+}
+
+static int multiplyByTwo(int n)
+{
+    return n * 2;
+}
+
+static double multiplyByOneAndAHalf(double d)
+{
+    return d * 1.5;
+}
+
+TEST(FunctionalTest, UnaryBind)
+{
+    Function<int ()> multiplyFourByTwoFunction = bind(multiplyByTwo, 4);
+    ASSERT_EQ(8, multiplyFourByTwoFunction());
+
+    Function<double ()> multiplyByOneAndAHalfFunction = bind(multiplyByOneAndAHalf, 3);
+    ASSERT_EQ(4.5, multiplyByOneAndAHalfFunction());
+}
+
+static int multiply(int x, int y)
+{
+    return x * y;
+}
+
+static int subtract(int x, int y)
+{
+    return x - y;
+}
+
+TEST(FunctionalTest, BinaryBind)
+{
+    Function<int ()> multiplyFourByTwoFunction = bind(multiply, 4, 2);
+    ASSERT_EQ(8, multiplyFourByTwoFunction());
+
+    Function<int ()> subtractTwoFromFourFunction = bind(subtract, 4, 2);
+    ASSERT_EQ(2, subtractTwoFromFourFunction());
+}
+
+class A {
+public:
+    explicit A(int i)
+        : m_i(i)
+    {
+    }
+
+    int f() { return m_i; }
+    int addF(int j) { return m_i + j; }
+
+private:
+    int m_i;
+};
+
+TEST(FunctionalTest, MemberFunctionBind)
+{
+    A a(10);
+    Function<int ()> function1 = bind(&A::f, &a);
+    ASSERT_EQ(10, function1());
+
+    Function<int ()> function2 = bind(&A::addF, &a, 15);
+    ASSERT_EQ(25, function2());
+}
+
+class B {
+public:
+    B()
+        : m_numRefCalls(0)
+        , m_numDerefCalls(0)
+    {
+    }
+
+    ~B()
+    {
+    }
+
+    void ref()
+    {
+        m_numRefCalls++;
+    }
+
+    void deref()
+    {
+        m_numDerefCalls++;
+    }
+
+    void f() { ASSERT_GT(m_numRefCalls, 0); }
+    void g(int) { ASSERT_GT(m_numRefCalls, 0); }
+
+    int m_numRefCalls;
+    int m_numDerefCalls;
+};
+
+TEST(FunctionalTest, MemberFunctionBindRefDeref)
+{
+    B b;
+
+    {
+        Function<void ()> function1 = bind(&B::f, &b);
+        function1();
+
+        Function<void ()> function2 = bind(&B::g, &b, 10);
+        function2();
+    }
+
+    ASSERT_TRUE(b.m_numRefCalls == b.m_numDerefCalls);
+    ASSERT_GT(b.m_numRefCalls, 0);
+
+}
+
+class Number : public RefCounted<Number> {
+public:
+    static PassRefPtr<Number> create(int value)
+    {
+        return adoptRef(new Number(value));
+    }
+
+    ~Number()
+    {
+        m_value = 0;
+    }
+
+    int value() const { return m_value; }
+
+private:
+    explicit Number(int value)
+        : m_value(value)
+    {
+    }
+
+    int m_value;
+};
+
+static int multiplyNumberByTwo(Number* number)
+{
+    return number->value() * 2;
+}
+
+TEST(FunctionalTest, RefCountedStorage)
+{
+    RefPtr<Number> five = Number::create(5);
+    Function<int ()> multiplyFiveByTwoFunction = bind(multiplyNumberByTwo, five);
+    ASSERT_EQ(10, multiplyFiveByTwoFunction());
+
+    Function<int ()> multiplyFourByTwoFunction = bind(multiplyNumberByTwo, Number::create(4));
+    ASSERT_EQ(8, multiplyFourByTwoFunction());
+
+    RefPtr<Number> six = Number::create(6);
+    Function<int ()> multiplySixByTwoFunction = bind(multiplyNumberByTwo, six.release());
+    ASSERT_FALSE(six);
+    ASSERT_EQ(12, multiplySixByTwoFunction());
+}
+
+namespace RefAndDerefTests {
+    
+    template<typename T> struct RefCounted {
+        void ref();
+        void deref();
+    };
+    struct Connection : RefCounted<Connection> { };
+    COMPILE_ASSERT(WTF::HasRefAndDeref<Connection>::value, class_has_ref_and_deref);
+    
+    struct NoRefOrDeref { };
+    COMPILE_ASSERT(!WTF::HasRefAndDeref<NoRefOrDeref>::value, class_has_no_ref_or_deref);
+    
+    struct RefOnly { void ref(); };
+    COMPILE_ASSERT(!WTF::HasRefAndDeref<RefOnly>::value, class_has_ref_only);
+    
+    struct DerefOnly { void deref(); };
+    COMPILE_ASSERT(!WTF::HasRefAndDeref<DerefOnly>::value, class_has_deref_only);
+
+}
+
+} // namespace TestWebKitAPI