http://www.robohornet.org gives a score of 101.36 on master,
and 102.68 with this PR. The latter is slightly better,
but probably within noise level.
So it looks like this PR does not affect DOM performance.
This is expected since `Box::new` is defined as:
```rust
impl<T> Box<T> {
#[inline(always)]
pub fn new(x: T) -> Box<T> {
box x
}
}
```
With inlining, it should compile to the same as box syntax.
fix #18776: use XML fragment serialization for innerHTML in XML documents
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I am not sure whether my solution is in the right way.
@jdm Can you give some advises?
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This type is a lot of complexity related to a very specific thing such as the
hover and active quirk.
Instead of that, move `nesting_level` to `MatchingContext`, and simplify all
this computing whether the quirk applies upfront, for each complex selector we
test.
This is less error-prone, and also allows simplifying more stuff in a bit.
Remove cssText from CSSStyleValue
Removed from associated .rs and .webidl
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Not much more to add - let me know if it needs additional changes.
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This introduces DeclarationSource, to see if a declaration has been parsed or
set from CSSOM in a declaration block.
The Servo_DeclarationBlock_SetFoo and similar callers are changed to
DeclarationSource::CssOm because their semantics are more CSSOM-y, but it
shouldn't matter since they should all be checked before hand with
Servo_DeclarationBlock_PropertyIsSet.
Serializing childrenonly
Rebased from #17896.
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Add support for dynamic bgcolor change
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Parse srcset attribute values
Squashed version of #18313.
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We don't store video-specific metadata anymore, and we don't ignore audio-specific
metadata anymore. We now just acknowledge that we received some metadata.
Parse sizes attribute values
Squashed version of #17808.
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Associate WebGL textures with texture units
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Currently `bound_texture_2d` and `bound_texture_cube_map` fields are used to restore texture states and to get the current bindings in GetParams(...). But as soon as active texture is changed all the values can become dirty, leading to broken textures in some demos or invalid getParam(...) call results.
This PR implements the texture binding association with the texture units.
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This Root<T> relies on the concept of a stable trace object, which doesn't
move for the whole lifetime of the T value. For safety reasons, T must be 'static.
The only implementor of StableTraceObject for now is Dom<T>.
