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-rw-r--r--components/script/dom/webidls/Element.webidl2
1 files changed, 2 insertions, 0 deletions
diff --git a/components/script/dom/webidls/Element.webidl b/components/script/dom/webidls/Element.webidl
index b7de03ac344..af14f81b373 100644
--- a/components/script/dom/webidls/Element.webidl
+++ b/components/script/dom/webidls/Element.webidl
@@ -81,6 +81,8 @@ interface Element : Node {
void insertAdjacentText(DOMString where_, DOMString data);
[CEReactions, Throws]
void insertAdjacentHTML(DOMString position, DOMString html);
+
+ [Throws, Pref="dom.shadowdom.enabled"] ShadowRoot attachShadow();
};
// http://dev.w3.org/csswg/cssom-view/#extensions-to-the-element-interface