Fix conflicts between ext-partition & other expts

Most of the fixes are related to replacing BLOCK_64X64 with
cm->sb_size.

Fixes the AV1/AqSegmentTest.TestNoMisMatchExtDeltaQ/* tests that
were breaking before with ex-partition.

Change-Id: I19d6045b422a93891b8cf4f8a929def97a595058
diff --git a/av1/decoder/decodemv.c b/av1/decoder/decodemv.c
index a7d2ec3..96c06b6 100644
--- a/av1/decoder/decodemv.c
+++ b/av1/decoder/decodemv.c
@@ -94,7 +94,7 @@
   FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
   (void)cm;
 
-  if ((bsize != BLOCK_64X64 || mbmi->skip == 0) && read_delta_lf_flag) {
+  if ((bsize != cm->sb_size || mbmi->skip == 0) && read_delta_lf_flag) {
 #if CONFIG_LOOPFILTER_LEVEL
     if (cm->delta_lf_multi) {
       assert(lf_id >= 0 && lf_id < FRAME_LF_COUNT);
diff --git a/av1/encoder/encodeframe.c b/av1/encoder/encodeframe.c
index 35c0d52..7938e3f 100644
--- a/av1/encoder/encodeframe.c
+++ b/av1/encoder/encodeframe.c
@@ -1589,7 +1589,7 @@
   int super_block_upper_left =
       ((mi_row & MAX_MIB_MASK) == 0) && ((mi_col & MAX_MIB_MASK) == 0);
 
-  if (cm->delta_q_present_flag && (bsize != BLOCK_64X64 || !mbmi->skip) &&
+  if (cm->delta_q_present_flag && (bsize != cm->sb_size || !mbmi->skip) &&
       super_block_upper_left) {
     const int dq = (mbmi->current_q_index - xd->prev_qindex) / cm->delta_q_res;
     const int absdq = abs(dq);
@@ -2147,7 +2147,7 @@
   if (!dry_run) {
 #if CONFIG_EXT_DELTA_Q
     mbmi = &xd->mi[0]->mbmi;
-    if (bsize == BLOCK_64X64 && mbmi->skip == 1 &&
+    if (bsize == cpi->common.sb_size && mbmi->skip == 1 &&
         cpi->common.delta_lf_present_flag) {
 #if CONFIG_LOOPFILTER_LEVEL
       for (int lf_id = 0; lf_id < FRAME_LF_COUNT; ++lf_id)
@@ -3132,7 +3132,7 @@
 
   const int idx_str = cm->mi_stride * mi_row + mi_col;
   MODE_INFO **const prev_mi = &cm->prev_mi_grid_visible[idx_str];
-  BLOCK_SIZE min_size = BLOCK_64X64;  // default values
+  BLOCK_SIZE min_size = cm->sb_size;  // default values
   BLOCK_SIZE max_size = BLOCK_4X4;
 
   if (prev_mi) {
@@ -4707,7 +4707,7 @@
       assert(current_qindex > 0);
 
       xd->delta_qindex = current_qindex - cm->base_qindex;
-      set_offsets(cpi, tile_info, x, mi_row, mi_col, BLOCK_64X64);
+      set_offsets(cpi, tile_info, x, mi_row, mi_col, cm->sb_size);
       xd->mi[0]->mbmi.current_q_index = current_qindex;
 #if !CONFIG_EXT_DELTA_Q
       xd->mi[0]->mbmi.segment_id = 0;