Merge "Initialize mb_skip_coeff before picking modes"

vp9/encoder/vp9_encodeframe.c

@@ -590,7 +590,11 @@ static void pick_sb_modes(VP9_COMP *cpi, int mi_row, int mi_col,
   set_offsets(cpi, mi_row, mi_col, bsize);
   xd->mode_info_context->mbmi.sb_type = bsize;
 
+  // Set to zero to make sure we do not use the previous encoded frame stats
+  xd->mode_info_context->mbmi.skip_coeff = 0;
+
   x->source_variance = get_sby_perpixel_variance(cpi, x, bsize);
+
   if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
     vp9_activity_masking(cpi, x);