Always send frame size explicitly

This commit changes to send frame size explicitly when
error_resilient_mode=1. Purpose is to allow parsing of bitstream
after a packet loss.

Change-Id: I7d1c010a465aa18914762cc1a3e61db377304c08
diff --git a/av1/encoder/bitstream.c b/av1/encoder/bitstream.c
index 948c4f5..b7cbc00 100644
--- a/av1/encoder/bitstream.c
+++ b/av1/encoder/bitstream.c
@@ -3292,7 +3292,15 @@
         aom_wb_write_bit(wb, cm->ref_frame_sign_bias[ref_frame]);
       }
 
+#if CONFIG_FRAME_SIZE
+      if (cm->error_resilient_mode == 0) {
+        write_frame_size_with_refs(cpi, wb);
+      } else {
+        write_frame_size(cm, wb);
+      }
+#else
       write_frame_size_with_refs(cpi, wb);
+#endif
 
       aom_wb_write_bit(wb, cm->allow_high_precision_mv);