core/html/custom/CustomElementRegistry.idl

// 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.

interface CustomElementRegistry {
    [CallWith=ScriptState, CEReactions, CustomElementCallbacks, RaisesException, MeasureAs=CustomElementRegistryDefine] void define(DOMString name, Function constructor, optional ElementDefinitionOptions options);
    any get(DOMString name);
    [CallWith=ScriptState,RaisesException] Promise<void> whenDefined(DOMString name);
};