chromium/third_party/blink/renderer/modules/app_banner/window_installation.idl

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// https://www.w3.org/TR/appmanifest/#extensions-to-the-window-object

[
    ImplementedAs=DOMWindowInstallation
] partial interface Window {
    attribute EventHandler onappinstalled;
    attribute EventHandler onbeforeinstallprompt;
};