Auto merge of #18696 - emilio:ua-sheets-reflow, r=jdm

layout_thread: Avoid adding the UA sheets multiple times when there's no root flow.

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This commit is contained in:
bors-servo 2017-10-03 12:46:53 -05:00 committed by GitHub
commit 3dc4614991
3 changed files with 43 additions and 17 deletions

View file

@ -14546,6 +14546,12 @@
{}
]
],
"mozilla/first-reflow-sheet-assert.html": [
[
"/_mozilla/mozilla/first-reflow-sheet-assert.html",
{}
]
],
"mozilla/focus_blur.html": [
[
"/_mozilla/mozilla/focus_blur.html",
@ -27925,6 +27931,10 @@
"f2ec5f89521fb4eda64a5e70249bbfb8850c4278",
"testharness"
],
"mozilla/first-reflow-sheet-assert.html": [
"8a0cf9152c3f2421d3e418f824f02c915092d78f",
"testharness"
],
"mozilla/focus_blur.html": [
"2735c5c482e38743b0976789af858075c54408c1",
"testharness"

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@ -0,0 +1,16 @@
<!doctype html>
<meta charset="utf-8">
<title>Issue 18631: Assertion failure when double-adding the UA sheets to the page</title>
<style>
* { display: none }
</style>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
// Trigger two forced reflows.
test(function() {
document.documentElement.offsetTop;
document.documentElement.offsetTop;
assert_true(true, "Didn't assert");
}, "Passes if it doesn't assert");
</script>