* scrollLeft/scrollTop returned values of parent or even document root
Only the scroll of the node itself is returned. Otherwise 0.0.
* Scrolling via script had set viewport.
This resulted in other nodes appearing scrolled.
Now scroll_offsets are updated with correct node id.
These bugs caused other odd behavior like both body and
document.documentElement being scrolled or the view for scrolled
elements jumping.
Remove the assert_readonly test and add one to verify that assigning to
CSSStyleRule.style correctly forwards to CSSStyleRule.style.cssText.
We currently test for whether CSSStyleRule.style is read-only by
trying to assign to it; however, the spec has it as actually:
interface CSSStyleRule : CSSRule {
...
[SameObject, PutForwards=cssText] readonly attribute CSSStyleDeclaration style;
};
See: https://drafts.csswg.org/cssom/
The `PutForwards=cssText` means that assigning to CSSStyleRule.style
should actually assign to style.cssText.
Serializing childrenonly
Rebased from #17896.
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Add support for dynamic bgcolor change
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If the first test selected by a testrunner thread had a CRASH expectation,
the testrunner believed that it needed to restart and would never actually
get around to running the test.
Fix the test count in the WPT grouping_formatter
The internal WPT API seems to have changed again, so we must revert the
previous change here to get the correct test count.
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We don't store video-specific metadata anymore, and we don't ignore audio-specific
metadata anymore. We now just acknowledge that we received some metadata.
