Fix namespace compilation.

Change-Id: Id8d71a48df20da16647834e8f9732012f26f928f
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>

src/multimedia/gsttools_headers/qgstappsrc_p.h

@@ -49,6 +49,8 @@
 #include <gst/app/gstappsrc.h>
 #include <gst/app/gstappbuffer.h>
 
+QT_BEGIN_NAMESPACE
+
 class QGstAppSrc  : public QObject
 {
     Q_OBJECT
@@ -103,4 +105,6 @@ private:
     bool m_forceData;
 };
 
+QT_END_NAMESPACE
+
 #endif

src/multimedia/gsttools_headers/qgstcodecsinfo_p.h

@@ -47,6 +47,8 @@
 
 #include <gst/gst.h>
 
+QT_BEGIN_NAMESPACE
+
 class QGstCodecsInfo
 {
 public:
@@ -69,4 +71,6 @@ private:
 };
 
 
+QT_END_NAMESPACE
+
 #endif

src/multimedia/gsttools_headers/qgstreamervideooverlay_p.h

@@ -48,11 +48,8 @@
 
 QT_BEGIN_NAMESPACE
 class QAbstractVideoSurface;
-QT_END_NAMESPACE
 class QX11VideoSurface;
 
-QT_BEGIN_NAMESPACE
-
 class QGstreamerVideoOverlay : public QVideoWindowControl, public QGstreamerVideoRendererInterface
 {
     Q_OBJECT

src/multimedia/gsttools_headers/qgstreamervideowindow_p.h

@@ -50,11 +50,8 @@
 
 QT_BEGIN_NAMESPACE
 class QAbstractVideoSurface;
-QT_END_NAMESPACE
 class QX11VideoSurface;
 
-QT_BEGIN_NAMESPACE
-
 class QGstreamerVideoWindow : public QVideoWindowControl,
         public QGstreamerVideoRendererInterface,
         public QGstreamerSyncMessageFilter

src/multimedia/gsttools_headers/qgstxvimagebuffer_p.h

@@ -88,8 +88,12 @@ struct QGstXvImageBuffer {
     static GstBufferClass *parent_class;
 };
 
+QT_END_NAMESPACE
+
 Q_DECLARE_METATYPE(XvImage*)
 
+QT_BEGIN_NAMESPACE
+
 class QGstXvImageBufferPool : public QObject, public QGstBufferPoolInterface {
     Q_OBJECT
     Q_INTERFACES(QGstBufferPoolInterface)

src/multimedia/gsttools_headers/qvideosurfacegstsink_p.h

@@ -68,7 +68,6 @@
 
 QT_BEGIN_NAMESPACE
 class QAbstractVideoSurface;
-QT_END_NAMESPACE
 
 #ifdef HAVE_XVIDEO
 class QGstXvImageBuffer;
@@ -182,4 +181,6 @@ public:
     GstVideoSinkClass parent_class;
 };
 
+QT_END_NAMESPACE
+
 #endif