libvpx: Pull from upstream

source/libvpx/vp9/common/vp9_tile_common.c

Index: source/libvpx/vp9/common/vp9_tile_common.c
===================================================================
--- source/libvpx/vp9/common/vp9_tile_common.c	(revision 278778)
+++ source/libvpx/vp9/common/vp9_tile_common.c	(working copy)
@@ -21,13 +21,21 @@
   return MIN(offset, mis);
 }
 
-void vp9_tile_init(TileInfo *tile, const VP9_COMMON *cm, int row, int col) {
+void vp9_tile_set_row(TileInfo *tile, const VP9_COMMON *cm, int row) {
   tile->mi_row_start = get_tile_offset(row, cm->mi_rows, cm->log2_tile_rows);
   tile->mi_row_end = get_tile_offset(row + 1, cm->mi_rows, cm->log2_tile_rows);
+}
+
+void vp9_tile_set_col(TileInfo *tile, const VP9_COMMON *cm, int col) {
   tile->mi_col_start = get_tile_offset(col, cm->mi_cols, cm->log2_tile_cols);
   tile->mi_col_end = get_tile_offset(col + 1, cm->mi_cols, cm->log2_tile_cols);
 }
 
+void vp9_tile_init(TileInfo *tile, const VP9_COMMON *cm, int row, int col) {
+  vp9_tile_set_row(tile, cm, row);
+  vp9_tile_set_col(tile, cm, col);
+}
+
 void vp9_get_tile_n_bits(int mi_cols,
                          int *min_log2_tile_cols, int *max_log2_tile_cols) {
   const int sb_cols = mi_cols_aligned_to_sb(mi_cols) >> MI_BLOCK_SIZE_LOG2;