libvpx: Pull from upstream

source/libvpx/vp9/common/vp9_onyxc_int.h

Index: source/libvpx/vp9/common/vp9_onyxc_int.h
===================================================================
--- source/libvpx/vp9/common/vp9_onyxc_int.h	(revision 290053)
+++ source/libvpx/vp9/common/vp9_onyxc_int.h	(working copy)
@@ -137,6 +137,7 @@
 
   int mi_idx;
   int prev_mi_idx;
+  int mi_alloc_size;
   MODE_INFO *mip_array[2];
   MODE_INFO **mi_grid_base_array[2];
 
@@ -188,11 +189,6 @@
   int error_resilient_mode;
   int frame_parallel_decoding_mode;
 
-  // Flag indicates if prev_mi can be used in coding:
-  //   0: encoder assumes decoder does not have prev_mi
-  //   1: encoder assumes decoder has and uses prev_mi
-  unsigned int coding_use_prev_mi;
-
   int log2_tile_cols, log2_tile_rows;
 
   // Private data associated with the frame buffer callbacks.
@@ -207,6 +203,15 @@
   ENTROPY_CONTEXT *above_context;
 } VP9_COMMON;
 
+static INLINE YV12_BUFFER_CONFIG *get_ref_frame(VP9_COMMON *cm, int index) {
+  if (index < 0 || index >= REF_FRAMES)
+    return NULL;
+  if (cm->ref_frame_map[index] < 0)
+    return NULL;
+  assert(cm->ref_frame_map[index] < FRAME_BUFFERS);
+  return &cm->frame_bufs[cm->ref_frame_map[index]].buf;
+}
+
 static INLINE YV12_BUFFER_CONFIG *get_frame_new_buffer(VP9_COMMON *cm) {
   return &cm->frame_bufs[cm->new_fb_idx].buf;
 }
@@ -271,6 +276,11 @@
   }
 }
 
+static INLINE int calc_mi_size(int len) {
+  // len is in mi units.
+  return len + MI_BLOCK_SIZE;
+}
+
 static INLINE void set_mi_row_col(MACROBLOCKD *xd, const TileInfo *const tile,
                                   int mi_row, int bh,
                                   int mi_col, int bw,