QmlProfiler: Support profiling applications on embedded Linux

Allow on-device profiling e.g. on Meego/Harmattan.

Change-Id: I066b71078e1dab1b1369ff7275f72e88045d1bab
Reviewed-on: http://codereview.qt.nokia.com/784
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Christian Kandeler <christian.kandeler@nokia.com>

src/plugins/qmlprofiler/abstractqmlprofilerrunner.h

@@ -49,6 +49,8 @@ public:
     virtual void start() = 0;
     virtual void stop() = 0;
 
+    virtual int debugPort() const = 0;
+
 signals:
     void started();
     void stopped();