[LayoutNG] Rebaseline html/details_summary/ tests.

They were just off by a pixel here and there. Nothing wrong.

Change-Id: I48246aab41197bd0d9829e4dcf1fca9499ee3b02
Reviewed-on: https://chromium-review.googlesource.com/c/1352318
Commit-Queue: Morten Stenshorne <mstensho@chromium.org>
Reviewed-by: David Grogan <dgrogan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611653}

third_party/blink/web_tests/FlagExpectations/enable-blink-features=LayoutNG

@@ -304,10 +304,6 @@ crbug.com/850504 fast/writing-mode/background-vertical-lr.html [ Failure ]
 crbug.com/850504 fast/writing-mode/basic-vertical-line.html [ Failure ]
 crbug.com/591099 fast/writing-mode/percentage-height-orthogonal-writing-modes.html [ Failure ]
 crbug.com/591099 fast/writing-mode/table-percent-width-quirk.html [ Pass ]
-crbug.com/855039 html/details_summary/details-writing-mode-align-center.html [ Failure ]
-crbug.com/855039 html/details_summary/details-writing-mode-align-left.html [ Failure ]
-crbug.com/855039 html/details_summary/details-writing-mode-align-right.html [ Failure ]
-crbug.com/855039 html/details_summary/details-writing-mode.html [ Failure ]
 crbug.com/591099 http/tests/devtools/elements/highlight/highlight-node.js [ Failure ]
 crbug.com/591099 http/tests/images/image-decode-in-frame.html [ Pass ]
 crbug.com/591099 http/tests/images/restyle-decode-error.html [ Failure ]