Emilio Cobos Álvarez 414edb5a4a style: Simplify the implementation of HasAuthorSpecifiedRules. ... This patch computes the author-specified properties during the CSS cascade, and removes the complex rule-tree-based implementation that tries to do the cascade again. This changes behavior in two ways, one of them which is not observable to content, I believe: * revert now re-enables the native styling. This was brought up in https://github.com/w3c/csswg-drafts/issues/4777 and I think it is a bug-fix. This is observable to content, and I'm adding a test for it. * We don't look at inherited styles from our ancestors when `inherit` is specified in a non-author stylesheet. This was introduced for bug 452969 but we don't seem to inherit background anymore for file controls or such. It seems back then file controls used to have a text-field. I audited forms.css and ua.css and we don't explicitly inherit padding / border / background-color into any nested form control. We keep the distinction between border/background and padding, because the later has some callers. I think we should try to align with Chromium in the long run and remove the padding bit. We need to give an appearance to the range-thumb and such so that we can assert that we don't call HasAuthorSpecifiedRules on non-themed stuff. I used a new internal value for that. Differential Revision: https://phabricator.services.mozilla.com/D67722		2020-04-16 16:35:07 +02:00
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mod.rs	style: Simplify the implementation of HasAuthorSpecifiedRules.	2020-04-16 16:35:07 +02:00