Mirko Brodesser fadc450e48 Bug 1865610: part 10) Add fetchpriority attribute support for rel=preload as=fetch and rel=preload as=font. r=emilio,valentin
Previously, for `rel=preload as=fetch`, the internal priority,
`nsISupportsPriority`, was not adjusted. Now, the adjustment happens in
`FetchPreloader::CreateChannel`.

For `rel=preload as=font`, previously, the internal priority was always
set to high in `FontLoaderUtils::BuildChannelSetup`. Now, the internal
priority is a parameter, whose value potentially depends on the
`fetchpriority` attribute.
Note the minor correction of calling `SetPriority` instead of
`AdjustPriority` in `FontLoaderUtils::BuildChannelSetup`.

Differential Revision: https://phabricator.services.mozilla.com/D194205
2023-11-30 15:00:10 +00:00
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