--- a/layout/style/ServoBindings.cpp
+++ b/layout/style/ServoBindings.cpp
@@ -153,17 +153,17 @@ Gecko_IsSignificantChild(RawGeckoNodeBor
                          bool aWhitespaceIsSignificant)
 {
   return nsStyleUtil::ThreadSafeIsSignificantChild(aNode->AsContent(),
                                                    aTextIsSignificant,
                                                    aWhitespaceIsSignificant);
 }
 
 RawGeckoNodeBorrowedOrNull
-Gecko_GetParentNode(RawGeckoNodeBorrowed aNode)
+Gecko_GetFlattenedTreeParentNode(RawGeckoNodeBorrowed aNode)
 {
   MOZ_ASSERT(!FlattenedTreeParentIsParent<nsIContent::eForStyle>(aNode),
              "Should have taken the inline path");
   MOZ_ASSERT(aNode->IsContent(), "Slow path only applies to content");
   const nsIContent* c = aNode->AsContent();
   return c->GetFlattenedTreeParentNodeInternal(nsIContent::eForStyle);
 }
 

--- a/layout/style/ServoBindings.h
+++ b/layout/style/ServoBindings.h
@@ -122,17 +122,17 @@ struct FontSizePrefs
 // DOM Traversal.
 uint32_t Gecko_ChildrenCount(RawGeckoNodeBorrowed node);
 bool Gecko_NodeIsElement(RawGeckoNodeBorrowed node);
 bool Gecko_IsInDocument(RawGeckoNodeBorrowed node);
 bool Gecko_FlattenedTreeParentIsParent(RawGeckoNodeBorrowed node);
 bool Gecko_IsSignificantChild(RawGeckoNodeBorrowed node,
                               bool text_is_significant,
                               bool whitespace_is_significant);
-RawGeckoNodeBorrowedOrNull Gecko_GetParentNode(RawGeckoNodeBorrowed node);
+RawGeckoNodeBorrowedOrNull Gecko_GetFlattenedTreeParentNode(RawGeckoNodeBorrowed node);
 RawGeckoNodeBorrowedOrNull Gecko_GetFirstChild(RawGeckoNodeBorrowed node);
 RawGeckoNodeBorrowedOrNull Gecko_GetLastChild(RawGeckoNodeBorrowed node);
 RawGeckoNodeBorrowedOrNull Gecko_GetPrevSibling(RawGeckoNodeBorrowed node);
 RawGeckoNodeBorrowedOrNull Gecko_GetNextSibling(RawGeckoNodeBorrowed node);
 RawGeckoElementBorrowedOrNull Gecko_GetFirstChildElement(RawGeckoElementBorrowed element);
 RawGeckoElementBorrowedOrNull Gecko_GetLastChildElement(RawGeckoElementBorrowed element);
 RawGeckoElementBorrowedOrNull Gecko_GetPrevSiblingElement(RawGeckoElementBorrowed element);
 RawGeckoElementBorrowedOrNull Gecko_GetNextSiblingElement(RawGeckoElementBorrowed element);