The expensive assertions in the nsStyleContext destructor that verifies that destroyed style structs aren't still referenced in the tree somewhere are currently |#if 0| due to how long they can take on large pages. We have added some crashtests for bugs in the bug 931668 optimizations that are caught be these assertions. So that we can check that we don't re-introduce problems that cause those crashtests to fail, let's put the assertions behind a pref (though still DEBUG-only) that we can selectively enable for those tests in the crashtest manifest.
Created attachment 8572441 [details] patch
Assignee: nobody → cam
Status: NEW → ASSIGNED
Attachment #8572441 - Flags: review?(dbaron)
4 years ago
Attachment #8572441 - Flags: review?(dbaron) → review+
Status: ASSIGNED → RESOLVED
Last Resolved: 4 years ago
status-firefox39: --- → fixed
Resolution: --- → FIXED
Target Milestone: --- → mozilla39
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