css-contain/contain-size-monolithic-002.html passes in NG block frag.

TBR=foolip@chromium.org

Bug: 1154574
Change-Id: Ib632013e53de9b69d579890fe0c7b6f3dccb6f8e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2577200Reviewed-by: Morten Stenshorne <mstensho@chromium.org>
Commit-Queue: Morten Stenshorne <mstensho@chromium.org>
Cr-Commit-Position: refs/heads/master@{#834187}

third_party/blink/web_tests/TestExpectations

@@ -1006,6 +1006,7 @@ virtual/layout_ng_block_frag/external/wpt/css/css-break/tall-line-in-short-fragm
 virtual/layout_ng_block_frag/external/wpt/css/css-break/tall-line-in-short-fragmentainer-002.html [ Pass ]
 virtual/layout_ng_block_frag/external/wpt/css/css-break/trailing-child-margin-000.html [ Pass ]
 virtual/layout_ng_block_frag/external/wpt/css/css-break/trailing-child-margin-002.html [ Pass ]
+virtual/layout_ng_block_frag/external/wpt/css/css-contain/contain-size-monolithic-002.html [ Pass ]
 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/balance-break-avoidance-001.html [ Pass ]
 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/balance-orphans-widows-000.html [ Pass ]
 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/baseline-001.html [ Pass ]