|  | // Copyright 2022 The Chromium Authors | 
|  | // Use of this source code is governed by a BSD-style license that can be | 
|  | // found in the LICENSE file. | 
|  |  | 
|  | #ifndef CHROME_BROWSER_WEBAPPS_WEB_APP_OFFLINE_H_ | 
|  | #define CHROME_BROWSER_WEBAPPS_WEB_APP_OFFLINE_H_ | 
|  |  | 
|  | #include "content/public/browser/browser_context.h" | 
|  | #include "content/public/browser/web_contents.h" | 
|  | #include "content/public/common/alternative_error_page_override_info.mojom.h" | 
|  | #include "url/gurl.h" | 
|  |  | 
|  | namespace content { | 
|  | class RenderFrameHost; | 
|  | } | 
|  |  | 
|  | namespace web_app { | 
|  |  | 
|  | // Gets information from web app's manifest, including theme color, background | 
|  | // color and app short name, and returns this inside a struct. | 
|  | content::mojom::AlternativeErrorPageOverrideInfoPtr GetOfflinePageInfo( | 
|  | const GURL& url, | 
|  | content::RenderFrameHost* render_frame_host, | 
|  | content::BrowserContext* browser_context); | 
|  |  | 
|  | // Tracks how long the offline page is showing and the reason why it gets | 
|  | // closed (e.g. page is refreshed after coming back online or web contents gets | 
|  | // destroyed). | 
|  | void TrackOfflinePageVisibility(content::RenderFrameHost* render_frame_host); | 
|  |  | 
|  | }  // namespace web_app | 
|  |  | 
|  | #endif  // CHROME_BROWSER_WEBAPPS_WEB_APP_OFFLINE_H_ |