QmlProfiler: state dialog as floating widget

Change-Id: I48ff1d729e49347881c82c7bd066d30ecaca47a5
Reviewed-by: Simjees Abraham <simjees.abraham@nokia.com>
Reviewed-by: Christiaan Janssen <christiaan.janssen@nokia.com>

src/plugins/qmlprofiler/qmlprofilertraceview.h

@@ -138,6 +138,8 @@ signals:
     void enableToolbar(bool);
     void zoomLevelChanged(int);
 
+    void resized();
+
 private:
     void contextMenuEvent(QContextMenuEvent *);
     QWidget *createToolbar();