Move advanced search dialog into search result pane.

And move the cancel button into the specific search result widget.

Change-Id: Ide8173e1ec5de091e1c1332a2b0c47d9a30a4c87
Reviewed-on: http://codereview.qt-project.org/4555
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Leandro T. C. Melo <leandro.melo@nokia.com>
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

src/plugins/cpptools/cppfindreferences.h

@@ -83,6 +83,7 @@ public:
 private Q_SLOTS:
     void displayResults(int first, int last);
     void searchFinished();
+    void cancel();
     void openEditor(const Find::SearchResultItem &item);
     void onReplaceButtonClicked(const QString &text, const QList<Find::SearchResultItem> &items);