QmlProfiler: Use generic timeline classes where applicable.

Change-Id: I7bab7b20f3467f000a7ba4917919caa8f15ecf22
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>

src/plugins/qmlprofiler/qmlprofilertraceview.h

@@ -88,6 +88,7 @@ private:
 private:
     class QmlProfilerTraceViewPrivate;
     QmlProfilerTraceViewPrivate *d;
+    void setModelManager(QmlProfilerModelManager *modelManager);
 };
 
 class QmlProfilerQuickView : public QQuickView {