QNX: Added warning when low memory event is received

Low memory warning has been added for debug purposes.

Change-Id: I3ca4f1e68cec0914ce8d77b5bed4cde210c031fa
Reviewed-by: Kevin Krammer <kevin.krammer@kdab.com>
Reviewed-by: Fabian Bumberger <fbumberger@rim.com>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

src/plugins/platforms/qnx/qqnxbpseventfilter.cpp

@@ -46,6 +46,7 @@
 #include "qqnxvirtualkeyboardbps.h"
 #include "qqnxfiledialoghelper.h"
 
+#include <QCoreApplication>
 #include <QAbstractEventDispatcher>
 #include <QDebug>
 
@@ -248,6 +249,11 @@ bool QQnxBpsEventFilter::handleNavigatorEvent(bps_event_t *event)
         break;
     }
 
+    case NAVIGATOR_LOW_MEMORY:
+        qWarning() << "QGuiApplication based process" << QCoreApplication::applicationPid()
+                   << "received \"NAVIGATOR_LOW_MEMORY\" event";
+        return false;
+
     default:
         qBpsEventFilterDebug() << Q_FUNC_INFO << "Unhandled navigator event. code=" << bps_event_get_code(event);
         return false;