From fb657f7a1e3ef326214e0c42a5a0dd6dc0109338 Mon Sep 17 00:00:00 2001
From: Gaming4JC <g4jc@hyperbola.info>
Date: Sun, 19 Jan 2020 22:59:16 -0500
Subject: Bug 1406325 - Part 4: Use mType for LookupCustomElementDefinition and
 also removing parts of v0.

Tag UXP Issue #1344
---
 dom/html/nsHTMLContentSink.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'dom/html')

diff --git a/dom/html/nsHTMLContentSink.cpp b/dom/html/nsHTMLContentSink.cpp
index 518a3675e5..7d60fffb55 100644
--- a/dom/html/nsHTMLContentSink.cpp
+++ b/dom/html/nsHTMLContentSink.cpp
@@ -267,6 +267,8 @@ NS_NewHTMLElement(Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&&
     return NS_ERROR_OUT_OF_MEMORY;
 
   nsIAtom *name = nodeInfo->NameAtom();
+  RefPtr<nsIAtom> tagAtom = nodeInfo->NameAtom();
+  RefPtr<nsIAtom> typeAtom = aIs ? NS_Atomize(*aIs) : tagAtom;
 
   NS_ASSERTION(nodeInfo->NamespaceEquals(kNameSpaceID_XHTML),
                "Trying to HTML elements that don't have the XHTML namespace");
@@ -283,7 +285,7 @@ NS_NewHTMLElement(Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&&
       nsContentUtils::LookupCustomElementDefinition(nodeInfo->GetDocument(),
                                                     nodeInfo->LocalName(),
                                                     nodeInfo->NamespaceID(),
-                                                    aIs);
+                                                    typeAtom);
   }
 
   // It might be a problem that parser synchronously calls constructor, so filed
@@ -326,8 +328,6 @@ NS_NewHTMLElement(Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&&
       // SetupCustomElement() should be called with an element that don't have
       // CustomElementData setup, if not we will hit the assertion in
       // SetCustomElementData().
-      nsCOMPtr<nsIAtom> tagAtom = nodeInfo->NameAtom();
-      nsCOMPtr<nsIAtom> typeAtom = aIs ? NS_Atomize(*aIs) : tagAtom;
       // Built-in element
       *aResult = CreateHTMLElement(tag, nodeInfo.forget(), aFromParser).take();
       (*aResult)->SetCustomElementData(new CustomElementData(typeAtom));
@@ -377,7 +377,7 @@ NS_NewHTMLElement(Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&&
 
   if (CustomElementRegistry::IsCustomElementEnabled() &&
       (isCustomElementName || aIs)) {
-    nsContentUtils::SetupCustomElement(*aResult, aIs);
+    (*aResult)->SetCustomElementData(new CustomElementData(typeAtom));
   }
 
   return NS_OK;
-- 
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