зеркало из https://github.com/mozilla/gecko-dev.git
57789c06eb
Without this change, we can end up asserting in ComputeVariablesData and crashing in CSSVariableResolver::Resolve due to not finding any variable declarations on the rules we matched, when we have content like in the crashtest added here, i.e. variables inheriting into a pseudo like ::first-line and animations on the element inside the ::first-line. We could solve this alternatively by removing the assertion and making CSSVariableResolver::Resolve handle a null aDeclarations more gracefully, but since we can save the effort of recomputing the Variables struct in this case, we may as well. MozReview-Commit-ID: 6l06ZF3WGsy |
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