Created attachment 670664 [details] partial DMD output The attached file shows part of DMD's output, more than enough to demonstrate the problem. Are nsAttrValues shared in some way?
Inline style ones are, after bug 760331.
We're probably double counting shared MiscContainers.
The obvious fix here is not to count MiscContainers of type eCSSStyleRule from nsAttrValue::SizeOfWhatever, but to count them from the hashtable in nsHTMLCSSStyleSheet instead.
Status: NEW → RESOLVED
Last Resolved: 4 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 1026985
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