From 96897876a2b73cbceda0f978f3ce7fc8eef5cade Mon Sep 17 00:00:00 2001
From: Russell Bicknell <bicknellr@google.com>
Date: Wed, 27 Apr 2022 15:32:51 -0700
Subject: [PATCH] Upstream http://cl/362104095

---
 lib/utils/settings.d.ts | 4 ++++
 polymer-legacy.d.ts     | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/lib/utils/settings.d.ts b/lib/utils/settings.d.ts
index ab281c282e..72bed46ede 100644
--- a/lib/utils/settings.d.ts
+++ b/lib/utils/settings.d.ts
@@ -154,4 +154,8 @@ export {setUseAdoptedStyleSheetsWithBuiltCSS};
  */
 declare function setUseAdoptedStyleSheetsWithBuiltCSS(value: boolean): void;
 
+export const useShadow: boolean;
+export const useNativeCSSProperties: boolean;
+export const useNativeCustomElements: boolean;
+export const supportsAdoptingStyleSheets: boolean;
 export let legacyOptimizations: boolean;
diff --git a/polymer-legacy.d.ts b/polymer-legacy.d.ts
index 77e5c127ec..8d2b7426c6 100644
--- a/polymer-legacy.d.ts
+++ b/polymer-legacy.d.ts
@@ -5,3 +5,5 @@ import {LegacyElementMixin} from './lib/legacy/legacy-element-mixin.js';
 export {Polymer} from './lib/legacy/polymer-fn.js';
 
 export {html} from './lib/utils/html-tag.js';
+
+export const Base: LegacyElementMixin;