[SyncFS] Add completion callback to PromoteDemotedChanges (1/3)

chrome/browser/sync_file_system/local/local_file_sync_context.h

 // Copyright 2013 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_SYNC_FILE_SYSTEM_LOCAL_LOCAL_FILE_SYNC_CONTEXT_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_LOCAL_FILE_SYNC_CONTEXT_H_
 
 #include <deque>
 #include <map>
 #include <set>
@@ skipping 171 matching lines @@
       const SyncFileMetadataCallback& callback);
 
   // Returns true via |callback| if the given file |url| has local pending
   // changes.
   void HasPendingLocalChanges(
       fileapi::FileSystemContext* file_system_context,
       const fileapi::FileSystemURL& url,
       const HasPendingLocalChangeCallback& callback);
 
   void PromoteDemotedChanges(const GURL& origin,
-                             fileapi::FileSystemContext* file_system_context);
-  void UpdateChangesForOrigin(const GURL& origin);
+                             fileapi::FileSystemContext* file_system_context,
+                             const base::Closure& callback);
+  void UpdateChangesForOrigin(const GURL& origin,
+                              const base::Closure& callback);
 
   // They must be called on UI thread.
   void AddOriginChangeObserver(LocalOriginChangeObserver* observer);
   void RemoveOriginChangeObserver(LocalOriginChangeObserver* observer);
 
   // OperationRunner is accessible only on IO thread.
   base::WeakPtr<SyncableFileOperationRunner> operation_runner() const;
 
   // SyncContext is accessible only on IO thread.
   LocalFileSyncStatus* sync_status() const;
@@ skipping 16 matching lines @@
   friend class base::RefCountedThreadSafe<LocalFileSyncContext>;
   friend class CannedSyncableFileSystem;
 
   virtual ~LocalFileSyncContext();
 
   void ShutdownOnIOThread();
 
   // Starts a timer to eventually call NotifyAvailableChangesOnIOThread.
   // The caller is expected to update origins_with_pending_changes_ before
   // calling this.
-  void ScheduleNotifyChangesUpdatedOnIOThread();
+  void ScheduleNotifyChangesUpdatedOnIOThread(const base::Closure& callback);
 
   // Called by the internal timer on IO thread to notify changes to UI thread.
-  void NotifyAvailableChangesOnIOThread();
+  void NotifyAvailableChangesOnIOThread(const base::Closure& callback);
 
   // Called from NotifyAvailableChangesOnIOThread.
-  void NotifyAvailableChanges(const std::set<GURL>& origins);
+  void NotifyAvailableChanges(const std::set<GURL>& origins,
+                              const base::Closure& callback);
 
   // Helper routines for MaybeInitializeFileSystemContext.
   void InitializeFileSystemContextOnIOThread(
       const GURL& source_url,
       fileapi::FileSystemContext* file_system_context,
       const GURL& /* root */,
       const std::string& /* name */,
       base::File::Error error);
   SyncStatusCode InitializeChangeTrackerOnFileThread(
       scoped_ptr<LocalFileChangeTracker>* tracker_ptr,
@@ skipping 125 matching lines @@
   ObserverList<LocalOriginChangeObserver> origin_change_observers_;
 
   int mock_notify_changes_duration_in_sec_;
 
   DISALLOW_COPY_AND_ASSIGN(LocalFileSyncContext);
 };
 
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_LOCAL_FILE_SYNC_CONTEXT_H_