Only filter the blocks we need to filter (rather than use threshold=0)

Change-Id: Iddb2103452817e9624a28794cab923f00c3e9924
diff --git a/av1/common/cdef.h b/av1/common/cdef.h
index ca7b89c..08c438d 100644
--- a/av1/common/cdef.h
+++ b/av1/common/cdef.h
@@ -41,7 +41,7 @@
 
 int sb_all_skip(const AV1_COMMON *const cm, int mi_row, int mi_col);
 int sb_compute_dering_list(const AV1_COMMON *const cm, int mi_row, int mi_col,
-                           dering_list *dlist);
+                           dering_list *dlist, int filter_skip);
 void av1_cdef_frame(YV12_BUFFER_CONFIG *frame, AV1_COMMON *cm, MACROBLOCKD *xd);
 
 void av1_cdef_search(YV12_BUFFER_CONFIG *frame, const YV12_BUFFER_CONFIG *ref,