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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 ce0a4e596..101d5e931 100644
--- a/dom/base/nsIContent.h
+++ b/dom/base/nsIContent.h
@@ -697,6 +697,14 @@ public:
virtual mozilla::dom::ShadowRoot *GetContainingShadow() const = 0;
/**
+ * Gets the shadow host if this content is in a shadow tree. That is, the host
+ * of |GetContainingShadow|, if its not null.
+ *
+ * @return The shadow host, if this is in shadow tree, or null.
+ */
+ nsIContent* GetContainingShadowHost() const;
+
+ /**
* Gets the assigned slot associated with this content.
*
* @return The assigned slot element or null.