QtDBus: declare some classes as shared

Change-Id: I82f8d8d02f4a5276924f579871547c0a34605424
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/dbus/qdbuspendingcall.h

@@ -96,6 +96,8 @@ private:
     QDBusPendingCall();         // not defined
 };
 
+Q_DECLARE_SHARED(QDBusPendingCall)
+
 class QDBusPendingCallWatcherPrivate;
 class Q_DBUS_EXPORT QDBusPendingCallWatcher: public QObject, public QDBusPendingCall
 {

src/dbus/qdbusunixfiledescriptor.h

@@ -91,6 +91,8 @@ protected:
     Data d;
 };
 
+Q_DECLARE_SHARED(QDBusUnixFileDescriptor)
+
 QT_END_NAMESPACE
 
 Q_DECLARE_METATYPE(QDBusUnixFileDescriptor)