Stylo: Change mask-repeat initial value from no-repeat to repeat.
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Change mask-repeat initial value from no-repeat to repeat.
Gecko bug link:
https://bugzilla.mozilla.org/show_bug.cgi?id=1364273
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stylo: Pass Cached ImageValue from stylo back to gecko
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This is part 6 ~ part 9 patch in bug 1310885
gecko bug link:
https://bugzilla.mozilla.org/show_bug.cgi?id=1310885
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Implement :-moz-anonymous-content in stylo
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Root nodes for the duration of their CSS transitions
This ensures that we can pass a node address as part of the asynchronous
transition end notification, making it safe to fire the corresponding
DOM event on the node from the script thread. Without explicitly rooting
this node when the transition starts, we risk the node being GCed before
the transition is complete.
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Otherwise we can have a situation like this:
<style>
.notmatching > #foo {}
</style>
<span id="foo"></span>
<span></span>
and the style sharing cache lookup for the second <span> would try to revalidate
against the cached value for the first <span>, but end up failing asserts about
the two elements matching lists of revalidation selectors that have the same
length.
This ensures that we can pass a node address as part of the asynchronous
transition end notification, making it safe to fire the corresponding
DOM event on the node from the script thread. Without explicitly rooting
this node when the transition starts, we risk the node being GCed before
the transition is complete.
In a similar way to Position, now specified and computed gradients share
a common Gradient type defined in style::values::generics::image.
This allows us to reuse most code for many style traits like ToCss,
HasViewportPercentage and ToComputedValue.
The test changes are the fallout of the disappearance of AngleOrCorner::None,
which align our code to the spec for serialisation, where components that can
be omitted should be omitted.
