[Webkit-unassigned] [Bug 160362] NULL Reference Error in ElementRuleCollector

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=160362

--- Comment #2 from Jonathan Bedard <jbedard at apple.com> ---
Note that it is possible the issue is much deeper than just this fix.

This fix only applies if it is legal for m_authorStyle to be undefined.  It seems like this should be the case, particularly since DocumentRuleSets seems to think such a case is legal, and all but one use of m_authorStyle was using the address of the reference anyways.

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