Emilio Cobos Álvarez 7dffe29d8f Bug 1432490: Make nsComputedDOMStyle::GetStyleContext / GetStyleContextNoFlush not take a presShell. r=bz
Everyone calls them with the shell of the current composed document, and this
allows the multi-presShell stuff to just be in UpdateCurrentStyleSources /
DoGetStyleContextNoFlush.

The only reason we need to use OwnerDoc()->GetShell() instead of the composed
doc in GetStyleContext / GetStyleContextNoFlush is Element::GetBindingURL, which
does expect to get the binding URL for stuff outside of the composed doc (and
changing that gave me a useless browser).

That's technically a behavior change on the cases that used to pass nullptr, but
I think all callers are fine with that. I could also just add a special function
for that particular case, it may be worth it.

MozReview-Commit-ID: 2XlnkgdgDCK
2018-02-25 02:23:59 +01:00
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