Fix compilation of Spreadsheet odk example

because of change to XDataPilotsResults IDL in
commit ac569ed4cf
"fdo#60300: Work-in-progress change to rework pivot table core"

Change-Id: I730e15226f4dfe3e6baa5d54e987da1016f6b15b
Reviewed-on: https://gerrit.libreoffice.org/3565
Reviewed-by: Fridrich Strba <fridrich@documentfoundation.org>
Tested-by: Fridrich Strba <fridrich@documentfoundation.org>

odk/examples/DevelopersGuide/Spreadsheet/ExampleDataPilotSource.java

@@ -1,3 +1,5 @@
+import com.sun.star.sheet.DataPilotFieldFilter;
+
 /*************************************************************************
  *
  *  The Contents of this file are made available subject to the terms of
@@ -864,6 +866,11 @@ public class ExampleDataPilotSource
             return aResults;
         }
 
+        public double[] getFilteredResults(DataPilotFieldFilter[] aFilters) {
+            // FIXME
+            return new double[0];
+        }
+
         //  XDimensionsSupplier
 
         public com.sun.star.container.XNameAccess getDimensions()