mozilla-central: changeset 531176:8d27c5ce5d6fb6aac7f1d74f47b8c90f697142cc

author	Ian Kilpatrick <ikilpatrick@chromium.org>
	Wed, 13 May 2020 09:49:49 +0000
changeset 531176	8d27c5ce5d6fb6aac7f1d74f47b8c90f697142cc
parent 531175	66fc6d279696f0eb9af21432929448deb4b738e9
child 531177	19d2de87b9f8426718f9760277c065f36d59c4d4
push id	37435
push user	apavel@mozilla.com
push date	Wed, 20 May 2020 15:28:23 +0000
treeherder	mozilla-central@5415da14ec9a [default view] [failures only]
perfherder	[talos] [build metrics] [platform microbench] (compared to previous push)
reviewers	testonly
bugs	1636833, 23496, 845235, 2187854, 767208
milestone	78.0a1
first release with	nightly linux32 6c10970490f3 / 78.0a1 / 20200520213050 / files nightly linux64 6c10970490f3 / 78.0a1 / 20200520213050 / files nightly mac 6c10970490f3 / 78.0a1 / 20200520213050 / files nightly win32 6c10970490f3 / 78.0a1 / 20200520213050 / files nightly win64 6c10970490f3 / 78.0a1 / 20200520213050 / files
last release without	nightly linux32 855249e545c3 / 78.0a1 / 20200520033931 / files nightly linux64 855249e545c3 / 78.0a1 / 20200520033931 / files nightly mac 855249e545c3 / 78.0a1 / 20200520033931 / files nightly win32 855249e545c3 / 78.0a1 / 20200520033931 / files nightly win64 855249e545c3 / 78.0a1 / 20200520033931 / files

Bug 1636833 [wpt PR 23496] - [FlexNG] Use fragment order as source of truth within simplified layout, a=testonly Automatic update from web-platform-tests [FlexNG] Use fragment order as source of truth within simplified layout Step 3/4 in getting flex to use the simplified layout pass. We need to use the fragment order as the source or truth as we use the fragment order as the correct paint order. The downside of this approach is that we now iterate twice over the children, once for the fragments, and again for the nodes. Adding placeholder fragments for the static-positions for the OOF will fix this. Bug: 845235 Change-Id: Idb149a25975885cee389c3bae1dd9021dbb5a467 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2187854 Commit-Queue: Koji Ishii <kojii@chromium.org> Reviewed-by: Koji Ishii <kojii@chromium.org> Cr-Commit-Position: refs/heads/master@{#767208} -- wpt-commits: 9bbbd9e569e4e5533af0ce55ed4b699b715f7ec6 wpt-pr: 23496

testing/web-platform/tests/css/css-position/position-absolute-dynamic-relayout-003.html

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new file mode 100644
--- /dev/null
+++ b/testing/web-platform/tests/css/css-position/position-absolute-dynamic-relayout-003.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+<link rel="help" href="https://www.w3.org/TR/css-position-3/" />
+<meta name="assert" content="This test checks that a dynamic OOF-positioned change doesn't cause children to paint differently." />
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div style="display: flex; position: relative; width: 100px; height: 100px;">
+  <div style="order: 2; margin-left: -100px; width: 100px; background: green;"></div>
+  <div style="order: 1; width: 100px; background: red;"></div>
+  <div id="target" style="position: absolute;"></div>
+</div>
+<script>
+  document.body.offsetTop;
+  document.getElementById('target').style.top = '10px';
+</script>