Added nsXULTreeBuilder to build.

rdf/content/src/Makefile.in

@@ -27,7 +27,6 @@ include $(topsrcdir)/config/config.mk
 LIBRARY_NAME = rdfcontent_s
 
 CPPSRCS =				\
-	nsXULAttributes.cpp		\
 	nsJSElementObserver.cpp		\
 	nsJSNodeObserver.cpp		\
 	nsJSXULDocument.cpp		\
@@ -41,8 +40,10 @@ CPPSRCS =				\
 	nsRDFToolbarBuilder.cpp		\
 	nsRDFTreeBuilder.cpp		\
 	nsRDFXULBuilder.cpp		\
+	nsXULAttributes.cpp		\
 	nsXULDocument.cpp               \
         nsXULSortService.cpp            \
+	nsXULTreeElement.cpp		\
 	$(NULL)
 
 EXPORTS = \