Add [CEReactions] IDL attributes for Custom Elements V1

third_party/WebKit/Source/core/dom/custom/CustomElement.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/dom/custom/CustomElement.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/QualifiedName.h"
+#include "core/dom/custom/CEReactionsScope.h"
+#include "core/dom/custom/CustomElementUpgradeReaction.h"
 #include "core/dom/custom/V0CustomElement.h"
 #include "core/dom/custom/V0CustomElementRegistrationContext.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/html/HTMLElement.h"
 #include "platform/text/Character.h"
 #include "wtf/text/AtomicStringHash.h"
 
 namespace blink {
 
 CustomElementsRegistry* CustomElement::registry(const Element& element)
@@ skipping 72 matching lines @@
         element = toHTMLElement(v0element);
     } else {
         element = HTMLElement::create(tagName, document);
     }
 
     element->setCustomElementState(CustomElementState::Undefined);
 
     return element;
 }
 
+void CustomElement::enqueueUpgradeReaction(Element* element, CustomElementDefinition* definition)
+{
+    // CEReactionsScope must be created by [CEReactions] in IDL,
+    // or callers must setup explicitly if it does not go through bindings.
+    DCHECK(CEReactionsScope::current());
+    CEReactionsScope::current()->enqueue(element,
+        new CustomElementUpgradeReaction(definition));
+}
+
 } // namespace blink