Switch to use Navigation events instead of provisional load events

chrome/browser/android/offline_pages/offline_page_tab_helper.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_ANDROID_OFFLINE_PAGES_OFFLINE_PAGE_TAB_HELPER_H_
 #define CHROME_BROWSER_ANDROID_OFFLINE_PAGES_OFFLINE_PAGE_TAB_HELPER_H_
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "content/public/browser/web_contents_observer.h"
@@ skipping 15 matching lines @@
 
  private:
   friend class content::WebContentsUserData<OfflinePageTabHelper>;
   friend class OfflinePageTabHelperTest;
 
   explicit OfflinePageTabHelper(content::WebContents* web_contents);
 
   // Overridden from content::WebContentsObserver:
   void DidStartNavigation(
       content::NavigationHandle* navigation_handle) override;
-  void DidFailProvisionalLoad(
-      content::RenderFrameHost* render_frame_host,
-      const GURL& validated_url,
-      int error_code,
-      const base::string16& error_description,
-      bool was_ignored_by_handler) override;
+  void DidFinishNavigation(
+      content::NavigationHandle* navigation_handle) override;
 
   void RedirectFromOfflineToOnline(const GURL& online_url);
   void RedirectFromOnlineToOffline(const GURL& offline_url);
 
   GURL last_redirect_from_url_;
   base::WeakPtrFactory<OfflinePageTabHelper> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(OfflinePageTabHelper);
 };
 
 }  // namespace offline_pages
 
 #endif  // CHROME_BROWSER_ANDROID_OFFLINE_PAGES_OFFLINE_PAGE_TAB_HELPER_H_