Add the basics of TextTrack
## Summary
Implement the basics of the TextTrack elements:
- TextTrack
- TextTrackCue
- TextTrackCueList
- TextTrackList
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes is related to #22311
- [x] There are tests for these changes
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Make desktop webdriver WPT harness work
This change allows me to run `./mach test-wpt --product servodriver --no-pause-after-test tests/wpt/mozilla/tests/mozilla/DOMParser.html` successfully again.
---
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#22409
- [x] There are tests for these changes
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Remove redundant `.clone()`s
<!-- Please describe your changes on the following line: -->
Removes `clone()`s of values unused after cloning.
---
<!-- 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: -->
- [ ] There are tests for these changes OR
- [x] These changes do not require tests because this is trivial cleanup
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Add info about building on Linux Mint to README.md
Linux Mint 19.* is based on Ubuntu 16.04 packages.
---
<!-- 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: -->
- [ ] There are tests for these changes OR
- [X] These changes do not require tests because they are documentation changes in the `README.md`
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---
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Cancel animations that affect nodes that do not participate in layout.
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#22378
- [x] There are tests for these changes
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Implement NavigationPreloadManager for ServiceWorker
---
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix part of #19302 .
- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because _____
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---
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Minor pull request template cleanup
<!-- Please describe your changes on the following line: -->
Some minor changes to improve the consistency of the pull request template.
---
<!-- 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
- [ ] These changes fix #__ (github issue number if applicable).
<!-- Either: -->
- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because _____
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---
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Kill test processes whenever any error occurs
<!-- 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#21822
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---
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Fixup the issue related with an incorrect distro version string handling
The original fixes for #21732 had a mistake.
The fix don't work on the LinuxMint with version 19:
```
File "./mach", line 96, in <module>
main(sys.argv)
File "./mach", line 24, in main
sys.exit(mach_bootstrap.bootstrap_command_only(topdir))
File "/home/user/workspace/skv/servo/python/mach_bootstrap.py", line 239, in bootstrap_command_only
bootstrap(context, force)
File "/home/user/workspace/skv/servo/python/servo/bootstrap.py", line 380, in bootstrap
distro, version = get_linux_distribution()
File "/home/user/workspace/skv/servo/python/servo/bootstrap.py", line 349, in get_linux_distribution
major, minor = version.split('.')
ValueError: need more than 1 value to unpack
```
I've fixed that
---
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#21732
<!-- Either: -->
- [ ] There are tests for these changes OR
- [X] These changes do not require tests because _____
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---
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Use the base Ubuntu distro instead of LinuxMint in './mach bootstrap'
I'm LinuxMint user.
I couldn't install all dependencies via `./mach bootstrap` due to error, described in this ticket: https://github.com/servo/servo/issues/21732
As LinuxMint is based on the stable Ubuntu, I've made a little fix for the `bootstrap` procedure.
---
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#21732 (github issue number if applicable).
<!-- Either: -->
- [ ] There are tests for these changes OR
- [X] These changes do not require tests because I haven't found the tests for `./mach bootstrap` (please correct me if I'm wrong)
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---
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Cleanup constellation after nll
<!-- Please describe your changes on the following line: -->
This cleans up a couple cases where we had to add extra scopes to appease the borrowck, now that nll has landed, this cleans these up.
---
<!-- 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: -->
- [ ] There are tests for these changes OR
- [X] These changes do not require tests because cleanup
<!-- 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. -->
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---
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