The only reason it was on style_traits is so that they could use it from some
other crates, but Servo eventually ends up getting the value from an integer, so
may as well pass it around and do that in the end of the process anyway.
Differential Revision: https://phabricator.services.mozilla.com/D16557
Update rust-mozjs
These changes adjust our uses of the rust-mozjs APIs to accommodate the changes in https://github.com/servo/rust-mozjs/pull/450.
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- [x] These changes fix#22342.
- [x] There are tests for these changes
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Don't panic when executing userscripts
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#22685
- [x] These changes do not require tests because there is no automation for testing userscripts.
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Reduce unnecessary iframe size messages
This should be an improvement on pages that include iframes, since we currently run two layout jobs for every display-oriented layout request. When building the display list, we send a message to the constellation that includes the sizes of all iframes present, and the constellation sends resize messages to the script thread. This results in a mouse event on the outer page causing all frames to be re-laid out even if no changes occurred to the iframe sizes, which is ridiculous.
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- [x] These changes fix#22394
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Implement HTMLMediaElement poster attribute
- [X] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#22288
- [x] There are tests for these changes
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Some janitoring over the layout crate
This PR moves a bunch of code around and makes some methods from one-use traits into inherent methods.
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Implement Element::set_url_attribute
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Implement Ended media attribute
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This PR should implement:
* New method `HTMLMediaElement::earliest_possible_position()` for the [earliest possible position](https://html.spec.whatwg.org/multipage/media.html#earliest-possible-position)
* `Ended` attribute following https://html.spec.whatwg.org/multipage/media.html#ended-playback
* Queue steps for when the playback position reaches the end
This PR contains placeholders for the following issues (I can rebase changes after the corresponding PRs get merged)
- #22321 (Define the Loop attribute)
- #22293 (To identify playback direction. Either forwards or backwards)
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