Mark two layout ng related tests as Timeout

Similar to crrev.com/c/2024913, there are two more tests started to
timeout:
https://analysis.chromium.org/p/chromium/flake-portal/flakes/occurrences?key=ag9zfmZpbmRpdC1mb3ItbWVyXQsSBUZsYWtlIlJjaHJvbWl1bUBibGlua193ZWJfdGVzdHNAZmFzdC9tdWx0aWNvbC9mbG9hdC13aXRoLW1hcmdpbi1tb3ZlZC1ieS1jaGlsZC1ibG9jay5odG1sDA

https://analysis.chromium.org/p/chromium/flake-portal/flakes/occurrences?key=ag9zfmZpbmRpdC1mb3ItbWVyVwsSBUZsYWtlIkxjaHJvbWl1bUBibGlua193ZWJfdGVzdHNAZXh0ZXJuYWwvd3B0L2Nzcy9jc3MtbXVsdGljb2wvbXVsdGljb2wtcnVsZS0wMDIueGh0DA

TBR=ikilpatrick@chromium.org

Bug: 1045282
Change-Id: Id1ddd1b3d93feb2ebcf7ffa836ac9db96e837a14
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2024914Reviewed-by: Yi Gu <yigu@chromium.org>
Commit-Queue: Yi Gu <yigu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#735894}

third_party/blink/web_tests/TestExpectations

@@ -986,7 +986,7 @@ crbug.com/591099 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/mult
 crbug.com/591099 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-overflowing-001.xht [ Failure ]
 crbug.com/591099 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-reduce-000.xht [ Failure ]
 crbug.com/591099 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-rule-000.xht [ Failure ]
-crbug.com/591099 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-rule-002.xht [ Crash Failure ]
+crbug.com/591099 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-rule-002.xht [ Crash Failure Timeout ]
 crbug.com/591099 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-rule-003.xht [ Failure ]
 crbug.com/792435 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-rule-004.xht [ Failure ]
 crbug.com/591099 virtual/layout_ng_block_frag/external/wpt/css/css-multicol/multicol-rule-color-001.xht [ Failure ]
@@ -1132,7 +1132,7 @@ crbug.com/954171 virtual/layout_ng_block_frag/fast/multicol/float-moved-by-child
 crbug.com/591099 virtual/layout_ng_block_frag/fast/multicol/float-paginate-empty-lines.html [ Failure ]
 crbug.com/591099 virtual/layout_ng_block_frag/fast/multicol/float-paginate.html [ Failure ]
 crbug.com/954171 virtual/layout_ng_block_frag/fast/multicol/float-with-margin-moved-by-child-block-and-unbreakable.html [ Failure Crash ]
-crbug.com/954171 virtual/layout_ng_block_frag/fast/multicol/float-with-margin-moved-by-child-block.html [ Failure Crash ]
+crbug.com/954171 virtual/layout_ng_block_frag/fast/multicol/float-with-margin-moved-by-child-block.html [ Failure Crash Timeout ]
 crbug.com/954171 virtual/layout_ng_block_frag/fast/multicol/float-with-margin-moved-by-child-line-and-unbreakable.html [ Failure Crash ]
 crbug.com/954171 virtual/layout_ng_block_frag/fast/multicol/float-with-margin-moved-by-child-line.html [ Failure Crash ]
 crbug.com/591099 virtual/layout_ng_block_frag/fast/multicol/forced-break-after-empty-block-after-spanner.html [ Failure ]