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style: Get rid of unstyled children only traversals.

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They're useless now, provided we remove the hack to not traverse XBL-bound
elements on initial styling.

Bug: 1418456
Reviewed-by: heycam
MozReview-Commit-ID: AvBVdyF1wb6
This commit is contained in:
Emilio Cobos Álvarez 2017-11-17 21:13:48 +01:00
parent 63bd783c55
commit b1fecea0aa
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GPG key ID: 056B727BB9C1027C
4 changed files with 18 additions and 80 deletions
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4
components/style/traversal_flags.rs
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@ -16,9 +16,6 @@ bitflags! {
/// Traverse and update all elements with CSS animations since
/// @keyframes rules may have changed. Triggered by CSS rule changes.
const ForCSSRuleChanges = 1 << 1;
/// Styles unstyled elements, but does not handle invalidations on
/// already-styled elements.
const UnstyledOnly = 1 << 2;
/// A forgetful traversal ignores the previous state of the frame tree, and
/// thus does not compute damage or maintain other state describing the styles
/// pre-traversal. A forgetful traversal is usually the right thing if you
@ -61,7 +58,6 @@ pub fn assert_traversal_flags_match() {
check_traversal_flags! {
ServoTraversalFlags_AnimationOnly => TraversalFlags::AnimationOnly,
ServoTraversalFlags_ForCSSRuleChanges => TraversalFlags::ForCSSRuleChanges,
ServoTraversalFlags_UnstyledOnly => TraversalFlags::UnstyledOnly,
ServoTraversalFlags_Forgetful => TraversalFlags::Forgetful,
ServoTraversalFlags_ClearDirtyBits => TraversalFlags::ClearDirtyBits,
ServoTraversalFlags_ClearAnimationOnlyDirtyDescendants =>