QmlProfiler: Refactor complete() methods

The complete() methods do something more specific. We should call them
by what they do. Also, we don't need to signal the finishing of data
acquisition via a signal and most of the postprocessing can happen in
the worker thread.

Change-Id: Iae986aefb8e7e7d4327c481d7a85325bbff7fa48
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>

src/plugins/qmlprofiler/qmlprofilermodelmanager.h

@@ -110,6 +110,9 @@ public:
     quint64 recordedFeatures() const;
     void setRecordedFeatures(quint64 features);
 
+    void acquiringDone();
+    void processingDone();
+
     static const char *featureName(QmlDebug::ProfileFeature feature);
 
 signals:
@@ -133,8 +136,6 @@ public slots:
                      const QmlDebug::QmlEventLocation &location,
                      qint64 ndata1, qint64 ndata2, qint64 ndata3, qint64 ndata4, qint64 ndata5);
 
-    void complete();
-
     void save(const QString &filename);
     void load(const QString &filename);