chromium/third_party/blink/renderer/modules/window_controls_overlay/window_controls_overlay.idl

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// https://github.com/WICG/window-controls-overlay/blob/master/explainer.md

[
    Exposed=Window
] interface WindowControlsOverlay : EventTarget {
    readonly attribute boolean visible;
    DOMRect getTitlebarAreaRect();
    attribute EventHandler ongeometrychange;
};