Implemented behind the new properties-and-values pref.
Support for the CSSPropertyRule WebIDL interface is also added in this
patch, because until it's added, any attempt to access the rule using
the CSSOM would crash the browser.
Depends on D178268
Differential Revision: https://phabricator.services.mozilla.com/D178270
Not yet hooked up to any rendering functionality.
The intention is for both the @font-palette-values at-rule and the font-palette property
to be behind the same pref being introduced here.
Differential Revision: https://phabricator.services.mozilla.com/D157953
Summary:
This should make it easier to report errors, and also reduce codesize.
The reason this was so generic is that error reporting was unconditionally
enabled and was super-hot, but now that's no longer the case after bug 1452143,
so we can afford the virtual call in the "error reporting enabled" case.
This opens the possibility of simplifying a lot the error setup as well, though
this patch doesn't do it.
Test Plan: No behavior change, so no new tests.
Reviewers: xidorn
Bug #: 1469957
Differential Revision: https://phabricator.services.mozilla.com/D1734
MozReview-Commit-ID: F3wTdhX9MB5
This allows us to report errors in functions that want to just parse a
single CSS value, rather than a value for a particular property declaration.
The one value type that we need to support for now is <color> value parsing
errors, so just add formatting/support for that.
passes test-tidy
removed match and used map
added new test test_report_error_passing_correct_url(...) and modified old unit tests
removed the option for servourl and tidied up
removed the duplicate test.
made a few more changes after @cbrewster suggestions.
changed _url to url in few places
fixed the indenting
The pipeline id stuff is currently unused. If someone needs it, they can add
an additional trait bound on their css error reporter to get the pipeline id.
