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-rw-r--r--dom/base/nsIContent.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/dom/base/nsIContent.h b/dom/base/nsIContent.h
index ff0c57e8c..edb0d69f3 100644
--- a/dom/base/nsIContent.h
+++ b/dom/base/nsIContent.h
@@ -950,6 +950,14 @@ public:
return false;
}
+ // Returns true if this element is native-anonymous scrollbar content.
+ bool IsNativeScrollbarContent() const {
+ return IsNativeAnonymous() &&
+ IsAnyOfXULElements(nsGkAtoms::scrollbar,
+ nsGkAtoms::resizer,
+ nsGkAtoms::scrollcorner);
+ }
+
// Overloaded from nsINode
virtual already_AddRefed<nsIURI> GetBaseURI(bool aTryUseXHRDocBaseURI = false) const override;