Move and cleanup search specific API to SearchResult class

Change-Id: I7e64701e8833ad38b9ac01d316bd00302602a390
Rubber-stamped-by: Daniel Teske
Reviewed-on: http://codereview.qt.nokia.com/4179
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

src/plugins/texteditor/findinfiles.cpp

@@ -45,9 +45,8 @@
 using namespace Find;
 using namespace TextEditor;
 
-FindInFiles::FindInFiles(SearchResultWindow *resultWindow)
-  : BaseFileFind(resultWindow),
-    m_configWidget(0),
+FindInFiles::FindInFiles()
+  : m_configWidget(0),
     m_directory(0)
 {
 }