Index: Source/core/css/CSSRule.cpp |
diff --git a/Source/core/css/CSSRule.cpp b/Source/core/css/CSSRule.cpp |
index b090ae7c1f41e79600a61995d58a040518a8504a..5dc114b898f1cd2fa176560ed1128550fbce3c48 100644 |
--- a/Source/core/css/CSSRule.cpp |
+++ b/Source/core/css/CSSRule.cpp |
@@ -57,6 +57,8 @@ void CSSRule::trace(Visitor* visitor) |
// some circumstances. |
if (m_parentIsRule) |
visitor->trace(m_parentRule); |
+ else |
+ visitor->trace(m_parentStyleSheet); |
} |
} // namespace WebCore |