diff -r 000000000000 -r 4f2f89ce4247 WebCore/dom/OverflowEvent.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/dom/OverflowEvent.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2006, 2007 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 COMPUTER, 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 COMPUTER, 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. 
+ */
+
+#include "config.h"
+#include "OverflowEvent.h"
+
+#include "EventNames.h"
+
+namespace WebCore {
+        
+OverflowEvent::OverflowEvent()
+    : Event(eventNames().overflowchangedEvent, false, false)
+    , m_orient(VERTICAL)
+    , m_horizontalOverflow(false)
+    , m_verticalOverflow(false)
+{
+}
+
+OverflowEvent::OverflowEvent(bool horizontalOverflowChanged, bool horizontalOverflow, bool verticalOverflowChanged, bool verticalOverflow)
+    : Event(eventNames().overflowchangedEvent, false, false)
+    , m_horizontalOverflow(horizontalOverflow)
+    , m_verticalOverflow(verticalOverflow)
+{
+    ASSERT(horizontalOverflowChanged || verticalOverflowChanged);
+
+    if (horizontalOverflowChanged && verticalOverflowChanged)
+        m_orient = BOTH;
+    else if (horizontalOverflowChanged)
+        m_orient = HORIZONTAL;
+    else
+        m_orient = VERTICAL;
+}
+
+bool OverflowEvent::isOverflowEvent() const
+{
+    return true;
+}
+
+void OverflowEvent::initOverflowEvent(unsigned short orient, bool horizontalOverflow, bool verticalOverflow)
+{
+    if (dispatched())
+        return;
+    
+    m_orient = orient;
+    m_horizontalOverflow = horizontalOverflow;
+    m_verticalOverflow = verticalOverflow;
+}
+
+}