libvpx: Pull from upstream

source/libvpx/vp9/common/vp9_loopfilter.h

Index: source/libvpx/vp9/common/vp9_loopfilter.h
diff --git a/source/libvpx/vp9/common/vp9_loopfilter.h b/source/libvpx/vp9/common/vp9_loopfilter.h
index 6d7cabf7cd405ef7000df5c90f7705854e86c9d8..f7cbde678dec24bca4e97c8374c26e77106e86f2 100644
--- a/source/libvpx/vp9/common/vp9_loopfilter.h
+++ b/source/libvpx/vp9/common/vp9_loopfilter.h
@@ -29,6 +29,12 @@ extern "C" {
 #define MAX_REF_LF_DELTAS       4
 #define MAX_MODE_LF_DELTAS      2
 
+enum lf_path {
+  LF_PATH_420,
+  LF_PATH_444,
+  LF_PATH_SLOW,
+};
+
 struct loopfilter {
   int filter_level;
 
@@ -89,17 +95,22 @@ struct VP9LfSyncData;
 // by mi_row, mi_col.
 void vp9_setup_mask(struct VP9Common *const cm,
                     const int mi_row, const int mi_col,
-                    MODE_INFO *mi_8x8, const int mode_info_stride,
+                    MODE_INFO **mi_8x8, const int mode_info_stride,
                     LOOP_FILTER_MASK *lfm);
 
-void vp9_filter_block_plane(struct VP9Common *const cm,
-                            struct macroblockd_plane *const plane,
-                            int mi_row,
-                            LOOP_FILTER_MASK *lfm);
+void vp9_filter_block_plane_ss00(struct VP9Common *const cm,
+                                 struct macroblockd_plane *const plane,
+                                 int mi_row,
+                                 LOOP_FILTER_MASK *lfm);
+
+void vp9_filter_block_plane_ss11(struct VP9Common *const cm,
+                                 struct macroblockd_plane *const plane,
+                                 int mi_row,
+                                 LOOP_FILTER_MASK *lfm);
 
 void vp9_filter_block_plane_non420(struct VP9Common *cm,
                                    struct macroblockd_plane *plane,
-                                   MODE_INFO *mi_8x8,
+                                   MODE_INFO **mi_8x8,
                                    int mi_row, int mi_col);
 
 void vp9_loop_filter_init(struct VP9Common *cm);