multicol-span-all-fieldset-003.html now passes in NG block frag.

Not sure what fixed it (went through some recent "suspicious" CLs, but
it wasn't any of them).

TBR=almaher@microsoft.com

Change-Id: Id2283b394b667798ebf4d4060bf260c6916f1eda
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2588929Reviewed-by: Morten Stenshorne <mstensho@chromium.org>
Commit-Queue: Morten Stenshorne <mstensho@chromium.org>
Cr-Commit-Position: refs/heads/master@{#836554}

third_party/blink/web_tests/TestExpectations

@@ -989,6 +989,7 @@ virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-span-all-008
 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-span-all-014.html [ Pass ]
 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-span-all-015.html [ Pass ]
 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-span-all-fieldset-001.html [ Pass ]
+virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-span-all-fieldset-003.html [ Pass ]
 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-span-all-margin-bottom-001.xht [ Pass ]
 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-span-float-001.xht [ Pass ]
 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/nested-with-too-tall-line.html [ Pass ]
@@ -1036,7 +1037,6 @@ crbug.com/1079031 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/mul
 crbug.com/1079031 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-rule-fraction-003.xht [ Crash Failure ]
 crbug.com/1079031 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-span-all-009.html [ Crash Failure ]
 crbug.com/874051 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-span-all-fieldset-002.html [ Failure Crash ]
-crbug.com/874051 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-span-all-fieldset-003.html [ Crash Failure ]
 crbug.com/1130451 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-span-all-list-item-001.html [ Failure ]
 crbug.com/1130451 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-span-all-list-item-002.html [ Failure ]
 crbug.com/1079031 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-width-003.xht [ Crash Failure Timeout ]