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diff --git a/Source/WebCore/html/HTMLFormControlElementWithState.cpp b/Source/WebCore/html/HTMLFormControlElementWithState.cpp
new file mode 100644
index 000000000..bf94c54d9
--- /dev/null
+++ b/Source/WebCore/html/HTMLFormControlElementWithState.cpp
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ *           (C) 1999 Antti Koivisto (koivisto@kde.org)
+ *           (C) 2001 Dirk Mueller (mueller@kde.org)
+ * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
+ *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "config.h"
+#include "HTMLFormControlElementWithState.h"
+
+#include "HTMLFormElement.h"
+
+namespace WebCore {
+
+HTMLFormControlElementWithState::HTMLFormControlElementWithState(const QualifiedName& tagName, Document* doc, HTMLFormElement* f)
+    : HTMLFormControlElement(tagName, doc, f)
+{
+    document()->registerFormElementWithState(this);
+}
+
+HTMLFormControlElementWithState::~HTMLFormControlElementWithState()
+{
+    document()->unregisterFormElementWithState(this);
+}
+
+void HTMLFormControlElementWithState::didMoveToNewDocument(Document* oldDocument)
+{
+    if (oldDocument)
+        oldDocument->unregisterFormElementWithState(this);
+    document()->registerFormElementWithState(this);
+    HTMLFormControlElement::didMoveToNewDocument(oldDocument);
+}
+
+bool HTMLFormControlElementWithState::shouldAutocomplete() const
+{
+    if (!form())
+        return true;
+    return form()->shouldAutocomplete();
+}
+
+bool HTMLFormControlElementWithState::shouldSaveAndRestoreFormControlState() const
+{
+    // We don't save/restore control state in a form with autocomplete=off.
+    return attached() && shouldAutocomplete();
+}
+
+void HTMLFormControlElementWithState::finishParsingChildren()
+{
+    HTMLFormControlElement::finishParsingChildren();
+
+    // We don't save state of a control with shouldSaveAndRestoreFormControlState()=false.
+    // But we need to skip restoring process too because a control in another
+    // form might have the same pair of name and type and saved its state.
+    if (!shouldSaveAndRestoreFormControlState())
+        return;
+
+    Document* doc = document();
+    if (doc->hasStateForNewFormElements()) {
+        String state;
+        if (doc->takeStateForFormElement(name().impl(), type().impl(), state))
+            restoreFormControlState(state);
+    }
+}
+
+} // namespace Webcore