From 2b020e9bbbc54f9c1bb44ef94a8e4382ca0a6558 Mon Sep 17 00:00:00 2001
From: Boris Zbarsky <bzbarsky@mit.edu>
Date: Tue, 13 Mar 2018 00:59:23 -0400
Subject: Bug 1444231 - Fix QI implementation for FragmentOrElement. r=mccr8,
 a=RyanVM

MozReview-Commit-ID: 9mPO2ezk2Y7

--HG--
extra : source : 060024fa93121d878d27f329c959757e6f71017a
extra : intermediate-source : 925d5693c5a1a73806062947b18c98ed13efc6c3
---
 dom/base/Element.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'dom/base/Element.cpp')

diff --git a/dom/base/Element.cpp b/dom/base/Element.cpp
index 9ced64c0d..8b9808aa3 100644
--- a/dom/base/Element.cpp
+++ b/dom/base/Element.cpp
@@ -183,6 +183,12 @@ Element::DoGetClasses() const
 NS_IMETHODIMP
 Element::QueryInterface(REFNSIID aIID, void** aInstancePtr)
 {
+  if (aIID.Equals(NS_GET_IID(Element))) {
+    NS_ADDREF_THIS();
+    *aInstancePtr = this;
+    return NS_OK;
+  }
+
   NS_ASSERTION(aInstancePtr,
                "QueryInterface requires a non-NULL destination!");
   nsresult rv = FragmentOrElement::QueryInterface(aIID, aInstancePtr);
-- 
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