tdf#103274 (3): Add default XCommandEnvironment reference

Change-Id: I0a3d8fbea1143c3f7fee6f9f3cbdfc24399090ed
Reviewed-on: https://gerrit.libreoffice.org/29980Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Giuseppe Castagno <giuseppe.castagno@acca-esse.eu>

unotools/source/ucbhelper/ucbhelper.cxx

@@ -78,7 +78,7 @@ ucbhelper::Content content(OUString const & url) {
 ucbhelper::Content content(INetURLObject const & url) {
     return ucbhelper::Content(
         url.GetMainURL(INetURLObject::NO_DECODE),
-        css::uno::Reference<css::ucb::XCommandEnvironment>(),
+        utl::UCBContentHelper::getDefaultCommandEnvironment(),
         comphelper::getProcessComponentContext());
 }