Redirect immediately to offline copy on no network

chrome/browser/android/offline_pages/offline_page_utils.h

Index: chrome/browser/android/offline_pages/offline_page_utils.h
diff --git a/chrome/browser/android/offline_pages/offline_page_utils.h b/chrome/browser/android/offline_pages/offline_page_utils.h
index 3e87312cc817d5e97a8b3bfdcba5f308bc7dd60c..a70c970758dfa8cdbf4399e650b64fa618e2b06e 100644
--- a/chrome/browser/android/offline_pages/offline_page_utils.h
+++ b/chrome/browser/android/offline_pages/offline_page_utils.h
@@ -44,6 +44,10 @@ class OfflinePageUtils {
   static bool HasOfflinePageForOnlineURL(
       content::BrowserContext* browser_context,
       const GURL& online_url);
+
+  // Marks that the offline page related to the |offline_url| has been accessed.
+  static void MarkPageAccessed(content::BrowserContext* browser_context,
+                               const GURL& offline_url);
 };
 
 }  // namespace offline_pages