Use constructor pattern instead of separate utility function.
Instead of allowing the Servo HSTS file loading to silently fail, we
should expect that file to always exist and be formatted correctly.
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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Fix handling of borders and padding for empty/stripped inline flows
This forces fragment generation for empty inline flows, if they have borders or padding. Fixes#10533 and #2001. Also includes fixes for other bugs that were uncovered by this change; see the individual commit messages for detailed explanations. r? @pcwalton
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Empty fragments may need to be layed out to draw borders, padding/background,
and insertion points. (Fragments that consist of discardable whitespace and
control characters, on the other hand, can still be discarded.)
This ends up preserving some useless empty fragments. It's possible we could
avoid this by storing some sort of flag on "important" empty fragments, so we
can discard the rest.
Remove unnecessary indirection in HTTP unit tests
Many of the HTTP unit tests use a custom request factory as well as a custom request that contained test logic. This is unnecessarily convoluted, and exists solely because the complete set of headers was unavailable until the request body was sent. These patches restructure the header manipulations so that the headers are available when the request object is created, allowing the test logic to move into the test factories, and enabling the deletion of almost all of the test request types.
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401 authorization UI then restart request/save successful auth creds
Step 7 of the NCSU student project Implement HTTP authorization UI
> make an authorization UI appear when a 401 HTTP response is received (StatusCode::Unauthorized) - in load in http_loader.rs, right before trying to process an HTTP redirection, use the new tinyfiledialogs library to make two prompts appear (username and password), then restart the request with the new authorization value present applied. If an authorization value was present and the response is successful, add the credentials to the authorization cache.
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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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