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style: Cleanup unused style traversal flags.

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Some of these were unused, some of them were only used in combination with
others, so I've unified them.

In particular, Forgetful and ClearAnimationOnlyDirtyDescendants were used only
together for a very specific task (the final animation traversal), so I merged
them into something that has that name.

ClearDirtyBits was unused, so I removed along with some code that would no
longer be called.

Differential Revision: https://phabricator.services.mozilla.com/D25454
This commit is contained in:
Emilio Cobos Álvarez 2019-04-09 18:03:41 +00:00
parent a7636010ee
commit fce58015d6
5 changed files with 10 additions and 60 deletions
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9
components/style/dom.rs
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@ -642,15 +642,6 @@ pub trait TElement:
self.unset_dirty_descendants();
}
/// Clear all element flags related to dirtiness.
///
/// In Gecko, this corresponds to the regular dirty descendants bit, the
/// animation-only dirty descendants bit, the lazy frame construction bit,
/// and the lazy frame construction descendants bit.
unsafe fn clear_dirty_bits(&self) {
self.unset_dirty_descendants();
}
/// Returns true if this element is a visited link.
///
/// Servo doesn't support visited styles yet.