Update webdriver crate
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I was playing around with the WebDriver tests and I managed to get some of them pass (several tests in `new_session/default_values.py`) by updating the `webdriver` crate to the latest version. It looks like the fix of this bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1507428 made the tests pass.
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Implement CDATASection interface and createCDATASection method
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Assert fail #18439
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This PR addresses #18439 by removing an assert statement that forces a panic whenever `LoadBlocker` is dropped during a GC sweep and receives a `None` `SCRIPT_THREAD_ROOT` value from `mark_document_with_no_blocked_loads()`. Instead of panicking on the assert, we remove it and let the None value pass silently.
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Add url for LayoutImageContext
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Fix substraction with overflow in range request
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Remove 'on' prefix from event handler macros
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Remove 'on' prefix from event handler macros
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- removed unused import in document_loader.rs
- limit unsafe block in mark_document_with_no_blocked_loads in script_thread.rs
- changed name of if let value to load in Drop for LoadBlocker in document_loader.rs
Update wpt metadata to show the new passes.
Add one test as crashing since currently passing an @import rule to insertRule
leads to "Expected a stylesheet loader for @import"
Fixes#23025
Add Gecko reftests, which are failing with gfx-hal backend
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Since the focus of the Szeged team will shift to Servo from Gecko, we would like to add some reftests from Gecko which are failing with the gfx-rs backend.
Last year we had pretty good results with Servo css tests: https://github.com/szeged/webrender/issues/173#issuecomment-415373702.
On the Gecko side we had more failing tests, and it would be nice to have a subset of those in Servo, even tough some of them fails on the Servo side.
cc @larsbergstrom @jdm @kvark
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