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diff --git a/Source/WTF/wtf/MemoryObjectInfo.h b/Source/WTF/wtf/MemoryObjectInfo.h
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+++ b/Source/WTF/wtf/MemoryObjectInfo.h
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+/*
+ * Copyright (C) 2012 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * OWNER 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.
+ */
+
+#ifndef MemoryObjectInfo_h
+#define MemoryObjectInfo_h
+
+namespace WTF {
+
+class MemoryClassInfo;
+class MemoryInstrumentation;
+
+typedef const char* MemoryObjectType;
+
+class MemoryObjectInfo {
+public:
+    MemoryObjectInfo(MemoryInstrumentation* memoryInstrumentation, MemoryObjectType ownerObjectType)
+        : m_memoryInstrumentation(memoryInstrumentation)
+        , m_objectType(ownerObjectType)
+        , m_objectSize(0)
+        , m_pointer(0)
+    { }
+
+    typedef MemoryClassInfo ClassInfo;
+
+    MemoryObjectType objectType() const { return m_objectType; }
+    size_t objectSize() const { return m_objectSize; }
+    const void* reportedPointer() const { return m_pointer; }
+
+    MemoryInstrumentation* memoryInstrumentation() { return m_memoryInstrumentation; }
+
+private:
+    friend class MemoryClassInfo;
+    friend class MemoryInstrumentation;
+
+    void reportObjectInfo(const void* pointer, MemoryObjectType objectType, size_t objectSize)
+    {
+        if (!m_objectSize) {
+            m_pointer = pointer;
+            m_objectSize = objectSize;
+            if (objectType)
+                m_objectType = objectType;
+        }
+    }
+
+    MemoryInstrumentation* m_memoryInstrumentation;
+    MemoryObjectType m_objectType;
+    size_t m_objectSize;
+    const void* m_pointer;
+};
+
+} // namespace WTF
+
+#endif // !defined(MemoryObjectInfo_h)