<!-- Please describe your changes on the following line: -->
I searched for all places where `if let Some(_) = self.downcast::` and replaced them with `::is`
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [ ] `./mach build -d` does not report any errors
- [ ] `./mach test-tidy` does not report any errors
- [X] These changes fix#17697 (github issue number if applicable).
<!-- Either: -->
- [X] These changes do not require tests because `if let Some(_) = self.downcast::<Text>()` should be equivalent to `if self.is::<Text>()`
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: 92b2c47fef8746e8311cab9b33bddc2cea391da1
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
Source-Repo: https://github.com/servo/servo
Source-Revision: 3ef182ca36f0067c0e431addc8ee7f1343b575c4
<!-- Please describe your changes on the following line: -->
This PR speculatively calls paint worklets during style, which increases the concurrency, since it increases the chance that the cache will have the right result in it when it comes to layout. The speculation is wasted effort if the size of the element has changed, but this is often not the case.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#17486 and #17369.
- [X] These changes do not require tests because it's a performance improvement
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: cf5602e84f17d14b6a9abb77f1de6460db070921
<!-- Please describe your changes on the following line: -->
Implement paint worklet arguments.
This is a dependent PR, only the last commit is in this PR.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#17435
- [X] These changes do not require tests because there are tests in the most recent wpt.
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: 097e36beb1fc34f021044a19f029eed8780fa87f
<!-- Please describe your changes on the following line: -->
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
Follow up for #17565
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: e87d8af0566bf3697023c984d4d2550455843567
<!-- Please describe your changes on the following line: -->
The Tokenizer, defined in the file `async_html.rs` will run on the main thread, while h5e's `Tokenizer`(along with its Sink) lives on the parser thread. Both h5e's `Tokenizer` and `Sink` communicate with the main thread Tokenizer via their own mpsc channels. The Sink keeps sending parser operations to the main thread, to be executed. For some operations, it waits for a message from the main thread before returning.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [ ] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [ ] These changes fix #__ (github issue number if applicable).
<!-- Either: -->
- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because _____
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: e8272dcf1a316549cdbc98a16c181c02743041c4
<!-- Please describe your changes on the following line: -->
This is reviewed by SimonSapin and xidorn in [Bug 1365900](https://bugzilla.mozilla.org/show_bug.cgi?id=1365900).
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix [Bug 1365900](https://bugzilla.mozilla.org/show_bug.cgi?id=1365900)
Source-Repo: https://github.com/servo/servo
Source-Revision: 00e55dd278f46560e61959a1fd5aa9e1846cb557
<!-- Please describe your changes on the following line: -->
Implemented drawing a CSS style value into a canvas, which is needed for the Houdini CSS Paint API.
This PR is dependent on #17364.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#17432.
- [X] These changes do not require tests because the existing CSS paint API wpt test cases test this behaviour.
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: 76ad913870cec3f01731d324967ed191fd5c6be3
This fixes the serialization issue of `@supports` rule that whitespaces are not preserved like in other browsers.
It makes the work a bit redundant (the property name and colon is parsed twice), but I suppose this isn't a big deal.
Source-Repo: https://github.com/servo/servo
Source-Revision: d1ac8b26e9fe2476d4b97522beb030ae60163d23
<!-- Please describe your changes on the following line: -->
This PR renders paint worklet canvases at the device pixel resolution, rather than the CSS pixel resolution.
It's a dependent PR, building on #17239, #17326 and #17364.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#17454
- [X] These changes do not require tests because we don't run reftests with zoom enabled
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: 9fcbeb3ca2ea0d11d4787c649e82918f7672694d
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
Source-Repo: https://github.com/servo/servo
Source-Revision: eba573d774dd2ac07ec8d62f1ad8deffca4667a4
<!-- Please describe your changes on the following line: -->
Add tidy check for keywords with more than one space afterwards.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#17700 (github issue number if applicable).
<!-- Either: -->
- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because _____
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: 7d95fb8e49dd0eb9fa9efb9d70008f5f9bf20a83
The `stylearc` alias is left there temporarilly and will be removed completely in a later commit/PR where also `components/style/gecko/generated/structs_{debug|release}.rs` are re-generated (they still use the old alias).
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#17768 (github issue number if applicable).
<!-- Either: -->
- [ ] There are tests for these changes OR
- [X] These changes do not require tests because no new features / only refactoring
Source-Repo: https://github.com/servo/servo
Source-Revision: 31228c18499d1c7f68b6b64b559354c768e81215
<!-- Please describe your changes on the following line: -->
Relies on #17614
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [ ] These changes fix #__ (github issue number if applicable).
<!-- Either: -->
- [X] There are tests for these changes OR
- [ ] These changes do not require tests because _____
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: a6739cb17f381b88531eb6173d048868aec8e082
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#17651
Source-Repo: https://github.com/servo/servo
Source-Revision: eb26194dd12f1430e9089512d54973d3b12b2e36
<!-- Please describe your changes on the following line: -->
At the moment, worklets are always exposed, even though their spec is still a draft. This PR hides them behind a pref.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#17680.
- [X] These changes do not require tests because the existing worklet tests do the job.
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: 92eeec297bb14f08873aecc04ca3734a37c0478f
<!-- Please describe your changes on the following line: -->
Initial work for implementing custom element reactions: https://html.spec.whatwg.org/multipage/custom-elements.html#custom-element-reactions
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#17433 (github issue number if applicable).
<!-- Either: -->
- [X] There are tests for these changes OR
- [ ] These changes do not require tests because _____
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: 7b134440fc736450cc87470a78e94f80b9161679
We maintain a stack of open element nodes with their children count, popping from the top of the stack and closing when the count reaches zero.
Contrary to my comment in #16696, this is a purely iterative algorithm. I just wasn't feeling sufficiently clever with respect to finding a relatively clean way until later.
<!-- Please describe your changes on the following line: -->
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#16696 (github issue number if applicable).
<!-- Either: -->
- [x] There are tests for these changes.
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: 66b9544d60289631638f7a07aca9da3700b99894
<!-- Please describe your changes on the following line: -->
These changes aim to fix#15247
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#15247 (github issue number if applicable).
<!-- Either: -->
- [ ] There are tests for these changes
- [x] These changes do not require tests because cors is already tested with different origins
These changes require changes in tests, but I need help with that (see comments below).
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: 2bb4f65100ca07e9281c8ad04cd498ff1346387f
This matches the behaviour of Gecko's CSS parser.
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#17736
- [X] There are tests for these changes
Source-Repo: https://github.com/servo/servo
Source-Revision: 38f4ae80c4b456b89ee33543c8c6699501696c9c
This allows us to have ensure_data() and clear_data() functions on the TElement
trait, instead of hacking around it adding methods in random traits.
This also allows us to do some further cleanup, which I'd rather do in a
followup.
Source-Repo: https://github.com/servo/servo
Source-Revision: 3497bbbf1d092dd8ab274e21b33b6394afa61d8a
This relands #17701, with a fix for the test failures.
Source-Repo: https://github.com/servo/servo
Source-Revision: f49650ce96578c200c71b0a8fa50094764a3c76d
**Can't run WPT on my computer, so pushing here to run tests 😢**
Have CharacterData.SetData call children_changed on its parent when
data is set (if it is a Text node) so that HTMLStyleElement parents can
re-parse. Add variant ChildrenMutation::Text for it to use as the
mutation.
This fixes an issue where an empty <style> element's data is set but the
style is not updated. An HTMLStyleElement parent re-parses in its
children_changed implementation.
<!-- Please describe your changes on the following line: -->
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes are part of a series to fix#17182 (github issue number if applicable).
<!-- Either: -->
- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because _____
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: 559c0d1d905bf6bc1dd72d576cd4fc8287e0947b
This reverts commit ebfc8f585834948f9b7564ffe382a6e266edf738, reversing
changes made to 5585ff2c440dc27c8e98e834c9c0e9d956581b8e.
Animation code can reenter and create a new TLS context from the traversal
SequentialTask, so this won't work as written, and it's making test fails.
Source-Repo: https://github.com/servo/servo
Source-Revision: 9d74ae890b31fc45452ae60af7d89573fc52a86f
We parse when assigning using the namespaces of the stylesheet. It isn't
clear if the spec says to do that (Firefox doesn't support the setter at
all, Chrome does, Safari doesn't); the spec issue is here:
https://github.com/w3c/csswg-drafts/issues/1511
Also fix ToCss implementation of AttrSelectorOperator to not pad with
spaces, to conform with CSSOM. This means we have to update some unit
tests that expect operators with spaces around them in attribute
selectors to roundtrip.
See the "attribute selector" section of "Serializing Selectors" here:
https://drafts.csswg.org/cssom/#serializing-selectors
CSSStyleRule.selectorText is specified here:
https://drafts.csswg.org/cssom/#dom-cssstylerule-selectortext
<!-- Please describe your changes on the following line: -->
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes is part of a series to fix#17182
<!-- Either: -->
I am running this to identify what tests will fail; as the other PRs in the series are merged, I believe the tests that pass will change as well.
- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because _____
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: 4b6e79337ef975e3ec752513b76ae6a6284c1199
<!-- Please describe your changes on the following line: -->
Added `fn trace()` implementation for `Box<[T]>` type, and change FunctionTimerCallback to store boxed slices for heap values instead of Vector.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#17611
<!-- Either: -->
- [x] These changes do not require tests
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: 749891e48ec6faa14447b299c48887754872e497
<!-- Please describe your changes on the following line: -->
This is the final PR to get basic paint worklet support. It adds support for paint worklet properties (https://drafts.css-houdini.org/css-paint-api/#paint-definition-input-properties). When a paint worklet is registered, it specifies a list of CSS properties, and is provided with their computed values when it is invoked.
This is a dependent PR:
* "Implemented paint worklets invoking worklet scripts" is #17239.
* "Implemented paint worklets rendering contexts" is #17326.
There should be tests added for this, hopefully the existing wpt houdini tests.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#16839
- [x] There are tests for these changes
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: bc44246fc682d9f2362eaca6bba07b45c293eb42
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#17664
- [X] There are tests for these changes
Source-Repo: https://github.com/servo/servo
Source-Revision: 2a575acabe50446803005db52b750405b7b7080c
Reflects desired changes in #15832
<!-- Please describe your changes on the following line: -->
Cleans up `HTMLImageElement::handle_event` located in `components/script/dom/htmlimageelement.rs`
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#15832
- [X] These changes do not require tests because this change maintains the same logic
Source-Repo: https://github.com/servo/servo
Source-Revision: 6e2e7151d84804d4d630cecb1bf0a5ea2fe70e2b
Add WebIDL, from UI Events working draft.
Implement script type for event.
Note that actually firing InputEvents is not part of this commit.
<!-- Please describe your changes on the following line: -->
As part of my effort to improve [keyboard handling](https://groups.google.com/forum/#!topic/mozilla.dev.servo/e6R7eBDjo4M) it is necessary to introduce the InputEvent. While I have a working prototype using the input event this still needs a lot of work before it can be merged into servo.
cc @jdm
Source-Repo: https://github.com/servo/servo
Source-Revision: f18782fb0e10e150f44719d9899a62b84ecb7adc
<!-- Please describe your changes on the following line: -->
Servo WebVR implementation started when WebVR spec 1.2 was about to be released. 1.2 API included some minor breaking changes from spec 1.1 in order to improve the support of the API in WebWorkers.
But eventually the WebVR committee decided not to release 1.2 and make it a major version number with a lot more changes. WebVR API 2.0 is still under heavy churn.
This PR removes the WebVR changes that non-released 1.2 version introduced to support full WebVR 1.1 spec.
I pushed some GC fixes in a separate commit. See https://github.com/servo/servo/issues/17076 and https://github.com/servo/rust-mozjs/issues/351
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [ ] These changes fix #__ (github issue number if applicable).
<!-- Either: -->
- [x] There are tests for these changes OR
- [ ] These changes do not require tests because _____
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: ddd3a15b50213931ad7c90312112275ae958d4a0
Replace mutable reference to array with direct use
Remove unnecessary clone
Replace call to unwrap()
<!-- Please describe your changes on the following line: -->
This PR refactors `Area::parse` in `component/script/dom/htmlareaelement.rs`
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#15834 (github issue number if applicable).
<!-- Either: -->
- [ ] There are tests for these changes OR
- [X] These changes do not require tests because it's good enough that it compiles
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: 4a66001d2fe61bcbbf095ca6b8a275add3d01175
<!-- Please describe your changes on the following line: -->
Implement the rendering context for paint worklets. They really paint things now!
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes do not require tests because the existing reftest now passes
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: a9fea0653a25d5f26f1115203015c5cf699f5227
<!-- Please describe your changes on the following line: -->
Implemented the "invoke a paint callback" functionality of paint worklets (https://drafts.css-houdini.org/css-paint-api/#invoke-a-paint-callback).
This PR does not implement the 2D rendering context, and just generates a placeholder image.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes do not require tests because we can't write reftests until we have 2D rendering contexts implemented.
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: 39da6d46742d67c94f9614212af6dabd6124e5b3
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix part of #5286.
- [x] These changes do not require tests because they are refactoring only.
Source-Repo: https://github.com/servo/servo
Source-Revision: 6d7fdb484b42a26f9d33217e163f157fd87b6742