removed deprecated FileDialogHelper::SetDisplayDirectory

and convert usage of it

Change-Id: I2e3a71ec94492e5482bdf720d256e67adaf3f095
Reviewed-on: https://gerrit.libreoffice.org/26951Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

cui/source/dialogs/hldoctp.cxx

@@ -196,13 +196,15 @@ void SvxHyperlinkDocTp::SetInitFocus()
 IMPL_LINK_NOARG_TYPED(SvxHyperlinkDocTp, ClickFileopenHdl_Impl, Button*, void)
 {
     // Open Fileopen-Dialog
-       ::sfx2::FileDialogHelper aDlg(
+    sfx2::FileDialogHelper aDlg(
         css::ui::dialogs::TemplateDescription::FILEOPEN_SIMPLE, FileDialogFlags::NONE,
         GetParent() );
     OUString aOldURL( GetCurrentURL() );
     if( aOldURL.startsWithIgnoreAsciiCase( sFileScheme ) )
     {
-        aDlg.SetDisplayDirectory( aOldURL );
+        OUString aPath;
+        osl::FileBase::getSystemPathFromFileURL(aOldURL, aPath);
+        aDlg.SetDisplayFolder( aPath );
     }
 
     DisableClose( true );