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Bug 761086. Throw if someone passes an invalid argument to inDOMUtils::GetCSSStyleRules. r=smaug

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This commit is contained in:
Boris Zbarsky 2012-06-06 15:59:57 -04:00
parent 809a53856c
commit f586ad5d30
1 changed files with 1 additions and 0 deletions
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layout/inspector/src/inDOMUtils.cpp
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@ -167,6 +167,7 @@ inDOMUtils::GetCSSStyleRules(nsIDOMElement *aElement,
nsRuleNode* ruleNode = nsnull;
nsCOMPtr<nsIContent> content = do_QueryInterface(aElement);
NS_ENSURE_STATE(content);
nsRefPtr<nsStyleContext> styleContext;
GetRuleNodeForContent(content, pseudoElt, getter_AddRefs(styleContext), &ruleNode);
if (!ruleNode) {