winrt: Add camera video probe controls

[ChangLog][multimedia][winrt] The WinRT backend now supports QVideoProbes
on camera objects.

Task-number: QTBUG-46228
Change-Id: I7850c5ec6f61e5824064d4be8afc8a0b55d05806
Reviewed-by: Andrew Knight <andrew.knight@intopalo.com>

src/plugins/winrt/qwinrtvideoprobecontrol.h

@@ -0,0 +1,54 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd and/or its subsidiary(-ies).
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** 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 QWINRTVIDEOPROBECONTROL_H
+#define QWINRTVIDEOPROBECONTROL_H
+
+#include <qmediavideoprobecontrol.h>
+
+QT_BEGIN_NAMESPACE
+
+class QWinRTCameraVideoRendererControl;
+class QWinRTVideoProbeControl : public QMediaVideoProbeControl
+{
+    Q_OBJECT
+public:
+    explicit QWinRTVideoProbeControl(QWinRTCameraVideoRendererControl *parent);
+    ~QWinRTVideoProbeControl();
+};
+
+QT_END_NAMESPACE
+
+#endif // QWINRTVIDEOPROBECONTROL_H