Get signals working in the EXTRA_DATA section of MHTML

chrome/browser/android/offline_pages/recent_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_RECENT_TAB_HELPER_H_
 #define CHROME_BROWSER_ANDROID_OFFLINE_PAGES_RECENT_TAB_HELPER_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 78 matching lines @@
   explicit RecentTabHelper(content::WebContents* web_contents);
   friend class content::WebContentsUserData<RecentTabHelper>;
 
   bool EnsureInitialized();
   void ContinueSnapshotWithIdsToPurge(SnapshotProgressInfo* snapshot_info,
                                       const std::vector<int64_t>& page_ids);
   void ContinueSnapshotAfterPurge(SnapshotProgressInfo* snapshot_info,
                                   OfflinePageModel::DeletePageResult result);
   void SavePageCallback(SnapshotProgressInfo* snapshot_info,
                         OfflinePageModel::SavePageResult result,
-                        int64_t offline_id);
+                        int64_t offline_id,
+                        const base::FilePath& saved_filepath);
   void ReportSnapshotCompleted(SnapshotProgressInfo* snapshot_info,
                                bool success);
   void ReportDownloadStatusToRequestCoordinator(
       SnapshotProgressInfo* snapshot_info,
       bool cancel_background_request);
   ClientId GetRecentPagesClientId() const;
   void SaveSnapshotForDownloads(bool replace_latest);
   void CancelInFlightSnapshots();
 
   // Page model is a service, no ownership. Can be null - for example, in
@@ skipping 35 matching lines @@
   bool last_n_listen_to_tab_hidden_ = false;
 
   base::WeakPtrFactory<RecentTabHelper> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RecentTabHelper);
 };
 
 }  // namespace offline_pages
 
 #endif  // CHROME_BROWSER_ANDROID_OFFLINE_PAGES_RECENT_TAB_HELPER_H_