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diff --git a/WebKit/qt/Api/qwebhistoryinterface.cpp b/WebKit/qt/Api/qwebhistoryinterface.cpp
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+++ b/WebKit/qt/Api/qwebhistoryinterface.cpp
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+/*
+  Copyright (C) 2007 Staikos Computing Services Inc.  <info@staikos.net>
+
+  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.
+
+  This class provides all functionality needed for tracking global history.
+*/
+
+#include "qwebhistoryinterface.h"
+
+#include <QCoreApplication>
+
+#include "PlatformString.h"
+#include <wtf/Platform.h>
+
+// FIXME: It's not correct to just implement a WebCore function in WebKit!
+// This needs to be fixed to match other platforms.
+
+namespace WebCore {
+
+bool historyContains(const UChar* characters, unsigned length)
+{
+    if (!QWebHistoryInterface::defaultInterface())
+        return false;
+
+    return QWebHistoryInterface::defaultInterface()->historyContains(QString(reinterpret_cast<const QChar*>(characters), length));
+}
+
+} // namespace WebCore
+
+static QWebHistoryInterface *default_interface;
+
+static bool gRoutineAdded;
+
+static void gCleanupInterface()
+{
+    delete default_interface;
+    default_interface = 0;
+}
+
+/*!
+  Sets a new default interface that will be used by all of WebKit
+  for managing history.
+*/
+void QWebHistoryInterface::setDefaultInterface(QWebHistoryInterface *defaultInterface)
+{
+    if (default_interface == defaultInterface)
+        return;
+    if (default_interface)
+        delete default_interface;
+    default_interface = defaultInterface;
+    if (!gRoutineAdded) {
+        qAddPostRoutine(gCleanupInterface);
+        gRoutineAdded = true;
+    }
+}
+
+/*!
+  Returns the default interface that will be used by WebKit. If no
+  default interface has been set, QtWebkit will not track history.
+*/
+QWebHistoryInterface *QWebHistoryInterface::defaultInterface()
+{
+    return default_interface;
+}
+
+/*!
+  \class QWebHistoryInterface
+  \since 4.4
+  \brief The QWebHistoryInterface class provides an interface to implement link history.
+
+  The QWebHistoryInterface is an interface that can be used to
+  implement link history. It contains two pure virtual methods that
+  are called by the WebKit engine.  addHistoryEntry() is used to add
+  pages that have been visited to the interface, while
+  historyContains() is used to query whether this page has been
+  visited by the user.
+*/
+QWebHistoryInterface::QWebHistoryInterface(QObject *parent) : QObject(parent)
+{
+}
+
+QWebHistoryInterface::~QWebHistoryInterface()
+{
+}
+
+/*!
+  \fn bool QWebHistoryInterface::historyContains(const QString &url) const
+
+  Called by the WebKit engine to query whether a certain url has been visited by the user already.
+*/
+
+/*!
+  \fn void QWebHistoryInterface::addHistoryEntry(const QString &url) const
+
+  Called by WebKit to add another url to the list of visited pages.
+*/