String to OUString

Change-Id: I93200c35bf33da16efc6f0dc5dfe2c79d8752250
Reviewed-on: https://gerrit.libreoffice.org/6095Reviewed-by: Matteo Casalin <matteo.casalin@yahoo.com>
Tested-by: Matteo Casalin <matteo.casalin@yahoo.com>

sw/inc/editsh.hxx

@@ -390,7 +390,7 @@ public:
     sal_Bool IsAnyDatabaseFieldInDoc()const;
 
     /// Check whether DB fields point to an available data source and returns it.
-    sal_Bool IsFieldDataSourceAvailable(String& rUsedDataSource) const;
+    sal_Bool IsFieldDataSourceAvailable(OUString& rUsedDataSource) const;
     void UpdateExpFlds(sal_Bool bCloseDB = sal_False);///< only every expression fields update
     void LockExpFlds();
     void UnlockExpFlds();

sw/source/core/edit/edfldexp.cxx

@@ -35,7 +35,7 @@
 
 using namespace com::sun::star;
 
-sal_Bool SwEditShell::IsFieldDataSourceAvailable(String& rUsedDataSource) const
+sal_Bool SwEditShell::IsFieldDataSourceAvailable(OUString& rUsedDataSource) const
 {
     const SwFldTypes * pFldTypes = GetDoc()->GetFldTypes();
     const sal_uInt16 nSize = pFldTypes->size();

sw/source/ui/uiview/view2.cxx

@@ -2337,7 +2337,7 @@ void SwView::GenerateFormLetter(sal_Bool bUseCurrentDocument)
         else
         {
             // check whether the
-            String sSource;
+            OUString sSource;
             if(!GetWrtShell().IsFieldDataSourceAvailable(sSource))
             {
                 SwMergeSourceWarningBox_Impl aWarning( &GetViewFrame()->GetWindow());