include: Added IDocObjectService interface definition.
diff --git a/.gitignore b/.gitignore
index 0a6a589..84bddc8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -167,6 +167,7 @@
 include/dimm.h
 include/dispex.h
 include/docobj.h
+include/docobjectservice.h
 include/downloadmgr.h
 include/dxgi.h
 include/dxgitype.h