Test removing a box before a self-collapsing block with clearance.

This broke for M77 and got fixed again after the branch point. Looks like we had no test coverage for it, but it affected WhatsApp for web. A phantom line [1] was also required to reproduce the bug. [1] https://www.w3.org/TR/CSS22/visuren.html#phantom-line-box Bug: 1003810 Change-Id: I942aea83bbf71a247cf73332dcf62af7c9343106 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1845759 Commit-Queue: Morten Stenshorne <mstensho@chromium.org> Reviewed-by: Ian Kilpatrick <ikilpatrick@chromium.org> Cr-Commit-Position: refs/heads/master@{#703899}

Test removing a box before a self-collapsing block with clearance.
This broke for M77 and got fixed again after the branch point. Looks like we had no test coverage for it, but it affected WhatsApp for web. A phantom line [1] was also required to reproduce the bug. [1] https://www.w3.org/TR/CSS22/visuren.html#phantom-line-box Bug: 1003810 Change-Id: I942aea83bbf71a247cf73332dcf62af7c9343106 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1845759 Commit-Queue: Morten Stenshorne <mstensho@chromium.org> Reviewed-by: Ian Kilpatrick <ikilpatrick@chromium.org> Cr-Commit-Position: refs/heads/master@{#703899}
ea0672ff · Morten Stenshorne · Commit Bot · cc1b611f · ea0672ff
Commit ea0672ff authored Oct 08, 2019 by Morten Stenshorne Committed by Commit Bot Oct 08, 2019
Showing with 21 additions and 0 deletions

third_party/blink/web_tests/external/wpt/css/CSS2/floats-clear/remove-block-before-self-collapsing-sibling-with-clearance.html ...-block-before-self-collapsing-sibling-with-clearance.html +21 -0

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--- a/third_party/blink/web_tests/external/wpt/css/CSS2/floats-clear/remove-block-before-self-collapsing-sibling-with-clearance.html
+++ b/third_party/blink/web_tests/external/wpt/css/CSS2/floats-clear/remove-block-before-self-collapsing-sibling-with-clearance.html
+<!DOCTYPE html>
+<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
+<link rel="help" href="https://www.w3.org/TR/CSS22/visuren.html#clearance">
+<link rel="help" href="https://www.w3.org/TR/CSS22/box.html#collapsing-margins">
+<link rel="help" href="https://www.w3.org/TR/CSS22/visuren.html#phantom-line-box">
+<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1003810">
+<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div style="overflow:hidden;">
+  <div id="first" style="height:100px;"></div>
+  <div id="victim" style="width:100px; padding-bottom:1px; background:red;">
+    <span></span>
+    <div style="float:left; width:100%; height:100px; background:green;"></div>
+    <div style="clear:both;"></div>
+  </div>
+</div>
+<script>
+  document.body.offsetTop;
+  victim.style.paddingBottom = "0";
+  first.style.display = "none";
+</script>