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style: Make sure to not run any style invalidation in an unstyled children only traversal.

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Bug: 1402472
Reviewed-by: bholley
MozReview-Commit-ID: IFPA7LJpvsZ
This commit is contained in:
Emilio Cobos Álvarez 2017-09-23 03:34:39 +02:00
parent 352b129dc5
commit fed5960f2c
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GPG key ID: 056B727BB9C1027C
1 changed files with 6 additions and 0 deletions
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6
components/style/traversal.rs
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@ -838,6 +838,12 @@ where
propagated_hint,
child.implemented_pseudo_element());
// Make sure to not run style invalidation of styled elements in an
// unstyled-children-only traversal.
if child_data.is_some() && flags.intersects(traversal_flags::UnstyledOnly) {
continue;
}
if let Some(ref mut child_data) = child_data {
// Propagate the parent restyle hint, that may make us restyle the whole
// subtree.