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diff --git a/src/core/user_script_controller_host.h b/src/core/user_script_controller_host.h
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+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the QtWebEngine module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef USER_SCRIPT_CONTROLLER_HOST_H
+#define USER_SCRIPT_CONTROLLER_HOST_H
+
+#include "qtwebenginecoreglobal.h"
+
+#include <QtCore/QSet>
+#include <QtCore/QScopedPointer>
+#include "user_script.h"
+
+namespace content {
+class RenderProcessHost;
+class WebContents;
+}
+
+namespace QtWebEngineCore {
+
+class WebContentsAdapter;
+class WebContentsAdapterPrivate;
+
+class QWEBENGINE_EXPORT UserScriptControllerHost {
+
+public:
+    UserScriptControllerHost();
+    ~UserScriptControllerHost();
+
+    void addUserScript(const UserScript &script, WebContentsAdapter *adapter);
+    bool containsUserScript(const UserScript &script, WebContentsAdapter *adapter);
+    bool removeUserScript(const UserScript &script, WebContentsAdapter *adapter);
+    void clearAllScripts(WebContentsAdapter *adapter);
+    void reserve(WebContentsAdapter *adapter, int count);
+    const QSet<UserScript> registeredScripts(WebContentsAdapter *adapter) const;
+
+    void renderProcessHostCreated(content::RenderProcessHost *renderer);
+
+private:
+    Q_DISABLE_COPY(UserScriptControllerHost)
+    class WebContentsObserverHelper;
+    class RenderProcessObserverHelper;
+
+    void webContentsDestroyed(content::WebContents *);
+
+    QSet<UserScript> m_profileWideScripts;
+    typedef QHash<content::WebContents *, QSet<UserScript>> ContentsScriptsMap;
+    ContentsScriptsMap m_perContentsScripts;
+    QSet<content::RenderProcessHost *> m_observedProcesses;
+    QScopedPointer<RenderProcessObserverHelper> m_renderProcessObserver;
+};
+
+} // namespace
+
+#endif // USER_SCRIPT_CONTROLLER_HOST_H