Add support for overflow:scroll and overflow:hidden to layout_2020
This adds clipping and interactive scrolling support, but scrolling from
script is still not functional.
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Do not include request progress/total values on XHR timeout
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Do not include request progress/total values on XHR timeout as [the specification]( https://xhr.spec.whatwg.org/#request-error-steps) states that upload events when errors occur should always pass 0 for both values.
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Kill off hanging crashtests.
The reason that complex-glsl-does-not-crash.html kept leaving zombie processes is the following:
* WPT introduced the notion of crash tests (ie. tests that verify that they do not crash)
* if a timeout expires while running a crash test and the test has not finished running, it is reported as a failure and potential hang
* there is no code that causes a hanging test to stop running
* any test filename that ends in `-crash` is automatically treated as a crashtest
Implement SubmitEvent
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FormSubmitter was already being passed into submit, so there wasn't much work to do here other than making the new event interface itself.
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fix DOMTokenList
I fixed the bug described in 25128, and also the other cases in the same test (order of elements after replace).
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Implement :defined CSS selector
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ElementState::IN_DEFINED_STATE already existed but wasn't hooked up to anything; now it is set appropriately, and CSS is aware of it. The main test for this selector needed the window named getter for no important reason, so I made a one-line test change to avoid that. Remaining failures in the test are all about SVG elements.
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Make nulling out an inline event handler remove it from the list order
Setting a content attribute or IDL attribute to null now removes event handlers like it's supposed to; the removeAttribute case seems to be something deeper which this change doesn't fix.
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Accept UTF8 cookie header values
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HeaderValue::to_str only works on ASCII; cookies can be utf8 too, so we decode accordingly.
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- [ ] There are tests for these changes in http_loader; I don't know whether websocket cookies have tests.
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Enable Mozilla CSS tests for layout_2020 and add expectations
This change allows mach to run the Mozilla CSS tests when running with the ``--layout2020` argument. This is useful because we can mark tests as passing as features are added.
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Implement URLMismatchError
Nothing in current specifications actually throws this DOMException type, but the type exists in specs nonetheless, and adding it lets us check off a WPT test.
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Make error events only pass the extra error-event arguments to global listeners
Error event handlers were getting lineno, etc. arguments even when they weren't on globals, failing two WPT tests; this fixes that.
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Add missing CanvasRenderingContext2D global composition operation "clear"
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do less on abort if not done
Abort() was resetting state when it didn't need to, and possibly also not resetting as much of it as it needed to. I'm not sure if this is a completely correct fix but it passes some WPT tests.
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Prevent infinite recursion when upgrading custom elements
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The spec and tests were out of sync when I implemented #25410 and I mentioned I'd have an extra detail to attend to if whatwg/html#5126 landed; it did, and I did, and a couple test cases pass.
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Update CanvasRenderingContext2D fillStyle and strokeStyle only when required
So far fill and stroke style updates have been sent to the canvas paint
thread by `SetFillStyle()` and `SetStrokeStyle()`. This resulted in
fill/stroke style updates not being considered by the canvas paint
thread between the latest call of `SetFillStyle()`/`SetStrokeStyle()` and
the drawing operation (e.g. fill or stroke).
This issue is solved by making `SetFillStyle()` and `SetStrokeStyle()`
update the local canvas state and propagating the state to the canvas
paint thread along with the drawing operations that require it.
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Enable cookies tests
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fix#24869
The first run of this will spit out a lot of new test failure metadata, of course.
