Reflows are expensive, but restyles can be as well (even if they don't trigger a reflow). We should have a way to test that specific scenario does not trigger a restyle. We also need a way to distinguish restyles with different hints (eg: Self vs Animation restyles). NI janx who can file other necessary bugs to make this happen.
I won't have time to work on this any time soon, sorry.
Firefox OS is not being worked on
Status: NEW → RESOLVED
Last Resolved: 4 months ago
Resolution: --- → WONTFIX
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