Implement HTMLTextArea.setSelectionRange (continuation of #10007)
Tests on `tests/wpt/web-platform-tests/html/semantics/forms/textfieldselection/textfieldselection-setSelectionRange.html` all pass and the other tests don't panic due to double borrows anymore.
cc: @KiChjang
Fixes#9994.
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Added panic message to failures.
Added the panic message to failures. This is a step towards #10334, since it gives us access to the panic error message when we fire a `mozbrowsererror` event. The remaining steps are also to record the backtrace, and to report the failure in the event.
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In rust-url 1.0 the `Url` struct is going to have private fields, and there
is no way to to create an aribitrary one without going through the parser.
The plugin never had a clear demonstrated performance benefit,
it was made mostly because it was possible and relatively easy at the time.
Implement HTMLBaseElement attributes
The remaining test failure in `base_multiple.html` looks like there's a problem with the test itself (it does not have a `<base>` tag at all).
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Fix typo: `cannot not outlive` -> `cannot outlive`
A `Root` cannot outlive the `RootCollection` it is recorded in.
The docs were saying otherwise.
r? @jdm
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Improve PerformanceTiming Interface
Solving https://github.com/servo/servo/issues/10428
- Fix timing precision in old `update_with_current_time`
- Correct time unit in `navigation_start`
- Add `LoadEventStart` and `LoadEventEnd` timing properties
There are still many properties left unimplemented. I tend to leave the for future PRs.
Welcome comments!
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Implement flexbox reordering
Add style property for `order` and implement reordering by this property
in flex flow. Based on previous work by @zentner-kyle.
Fixes: #9957
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Use better JS engine defaults
This adds in preferences for all the SM 39 available options (as
retrieved from Gecko), and uses the same defaults as Gecko. A few
properties are not supported yet, and incremental GC is still always
disabled regardless of the preference setting.
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