third_party/WebKit/Source/modules/webmidi/MIDIOutputMap.idl

// Copyright 2014 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.

// FIXME: Implement forEach.
// callback ForEachCallback = void(DOMString id, MIDIOutput port);

[
] interface MIDIOutputMap {
    readonly attribute unsigned long size;
    readonly maplike<DOMString, MIDIOutput>;
};