[Offline pages] Extracting callbacks from the Offline Page Model

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 47 matching lines @@
   // Test method, overrides the task_runner_ so FastForwardBy() can be used.
   void SetTaskRunnerForTest(
       const scoped_refptr<base::SingleThreadTaskRunner>& task_runner);
 
  private:
   explicit RecentTabHelper(content::WebContents* web_contents);
   friend class content::WebContentsUserData<RecentTabHelper>;
 
 
   void ContinueSnapshotWithIdsToPurge(const std::vector<int64_t>& page_ids);
-  void ContinueSnapshotAfterPurge(OfflinePageModel::DeletePageResult result);
-  void SavePageCallback(OfflinePageModel::SavePageResult result,
-                        int64_t offline_id);
+  void ContinueSnapshotAfterPurge(DeletePageResult result);
+  void SavePageCallback(SavePageResult result, int64_t offline_id);
 
   void ReportSnapshotCompleted();
   bool IsSamePage() const;
   ClientId client_id() const;
 
   // Page model is a service, no ownership.
   OfflinePageModel* page_model_;
 
   // If true, never make snapshots off the attached WebContents.
   bool never_do_snapshots_;
 
   // The URL of the page that is currently being snapshotted. Used to check,
   // during async operations, that WebContents still contains the same page.
   GURL snapshot_url_;
   std::unique_ptr<SnapshotController> snapshot_controller_;
   std::unique_ptr<TestArchiveFactory> test_archive_factory_;
 
   base::WeakPtrFactory<RecentTabHelper> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RecentTabHelper);
 };
 
 }  // namespace offline_pages
 #endif  // CHROME_BROWSER_ANDROID_OFFLINE_PAGES_RECENT_TAB_HELPER_H_