1 files changed, 11 insertions, 3 deletions
diff --git a/dom/html/HTMLTableCellElement.cpp b/dom/html/HTMLTableCellElement.cpp
index 1cf413413..e8b338342 100644
--- a/dom/html/HTMLTableCellElement.cpp
+++ b/dom/html/HTMLTableCellElement.cpp
@@ -107,9 +107,7 @@ HTMLTableCellElement::WalkContentStyleRules(nsRuleWalker* aRuleWalker)
   nsresult rv = nsGenericHTMLElement::WalkContentStyleRules(aRuleWalker);
   NS_ENSURE_SUCCESS(rv, rv);
 
-  if (HTMLTableElement* table = GetTable()) {
-    nsMappedAttributes* tableInheritedAttributes =
-      table->GetAttributesMappedForCell();
+  if (nsMappedAttributes* tableInheritedAttributes = GetMappedAttributesInheritedFromTable()) {
     if (tableInheritedAttributes) {
       aRuleWalker->Forward(tableInheritedAttributes);
     }
@@ -117,6 +115,16 @@ HTMLTableCellElement::WalkContentStyleRules(nsRuleWalker* aRuleWalker)
   return NS_OK;
 }
 
+nsMappedAttributes*
+HTMLTableCellElement::GetMappedAttributesInheritedFromTable() const
+{
+  if (HTMLTableElement* table = GetTable()) {
+    return table->GetAttributesMappedForCell();
+  }
+
+  return nullptr;
+}
+
 NS_IMETHODIMP
 HTMLTableCellElement::SetAbbr(const nsAString& aAbbr)
 {