Bug 1299363 - Part 5-1: Make the constructor created by document.registerElement() also works with construction stack.

So that the old upgrade can also work with new upgrade steps which will be implemented in part 5-2.

Tag UXP Issue #1344

1 files changed, 0 insertions, 34 deletions

diff --git a/dom/base/CustomElementRegistry.cpp b/dom/base/CustomElementRegistry.cpp
index 1c1e3d6ae..ce2e4b04f 100644
--- a/dom/base/CustomElementRegistry.cpp
+++ b/dom/base/CustomElementRegistry.cpp
@@ -799,40 +799,6 @@ CustomElementRegistry::Upgrade(Element* aElement,
 
   MOZ_ASSERT(aElement->IsHTMLElement(aDefinition->mLocalName));
 
-  AutoJSAPI jsapi;
-  if (NS_WARN_IF(!jsapi.Init(mWindow))) {
-    return;
-  }
-
-  JSContext* cx = jsapi.cx();
-
-  JS::Rooted<JSObject*> reflector(cx, aElement->GetWrapper());
-  if (reflector) {
-    Maybe<JSAutoCompartment> ac;
-    JS::Rooted<JSObject*> prototype(cx, aDefinition->mPrototype);
-    if (aElement->NodePrincipal()->SubsumesConsideringDomain(nsContentUtils::ObjectPrincipal(prototype))) {
-      ac.emplace(cx, reflector);
-      if (!JS_WrapObject(cx, &prototype) ||
-          !JS_SetPrototype(cx, reflector, prototype)) {
-        return;
-      }
-    } else {
-      // We want to set the custom prototype in the compartment where it was
-      // registered. We store the prototype from define() without unwrapped,
-      // hence the prototype's compartment is the compartment where it was
-      // registered.
-      // In the case that |reflector| and |prototype| are in different
-      // compartments, this will set the prototype on the |reflector|'s wrapper
-      // and thus only visible in the wrapper's compartment, since we know
-      // reflector's principal does not subsume prototype's in this case.
-      ac.emplace(cx, prototype);
-      if (!JS_WrapObject(cx, &reflector) ||
-          !JS_SetPrototype(cx, reflector, prototype)) {
-        return;
-      }
-    }
-  }
-
   EnqueueLifecycleCallback(nsIDocument::eCreated, aElement, nullptr, aDefinition);
 }