diff -r 000000000000 -r dd21522fd290 webengine/osswebengine/WebKit/qt/Api/qwebhistoryinterface.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebKit/qt/Api/qwebhistoryinterface.cpp	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,82 @@
+/*
+  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 "DeprecatedString.h"
+
+namespace WebCore {
+
+bool historyContains(const DeprecatedString& s)
+{
+    if (!QWebHistoryInterface::defaultInterface())
+        return false;
+
+    return QWebHistoryInterface::defaultInterface()->historyContains(QString(s));
+}
+
+} // 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;
+}
+
+QWebHistoryInterface::QWebHistoryInterface(QObject *parent) : QObject(parent)
+{
+}
+
+QWebHistoryInterface::~QWebHistoryInterface()
+{
+}