Add a callback to RemoteFileSyncService for reporting errors.

chrome/browser/sync_file_system/mock_remote_file_sync_service.h

 // Copyright (c) 2012 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_MOCK_REMOTE_FILE_SYNC_SERVICE_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_MOCK_REMOTE_FILE_SYNC_SERVICE_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/sync_file_system/remote_change_processor.h"
 #include "chrome/browser/sync_file_system/remote_file_sync_service.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "webkit/fileapi/syncable/sync_callbacks.h"
 
 class GURL;
 
 namespace sync_file_system {
 
 class MockRemoteFileSyncService : public RemoteFileSyncService {
  public:
   MockRemoteFileSyncService();
   virtual ~MockRemoteFileSyncService();
 
   // RemoteFileSyncService overrides.
   MOCK_METHOD1(AddObserver, void(RemoteFileSyncService::Observer* observer));
   MOCK_METHOD1(RemoveObserver, void(RemoteFileSyncService::Observer* observer));
-  MOCK_METHOD1(RegisterOriginForTrackingChanges, void(const GURL& origin));
-  MOCK_METHOD1(UnregisterOriginForTrackingChanges, void(const GURL& origin));
+  MOCK_METHOD2(RegisterOriginForTrackingChanges,
+               void(const GURL& origin,
+                    const fileapi::SyncStatusCallback& callback));
+  MOCK_METHOD2(UnregisterOriginForTrackingChanges,
+               void(const GURL& origin,
+                    const fileapi::SyncStatusCallback& callback));
   MOCK_METHOD2(ProcessRemoteChange,
                void(RemoteChangeProcessor* processor,
                     const fileapi::SyncFileCallback& callback));
   MOCK_METHOD0(GetLocalChangeProcessor, LocalChangeProcessor*());
   MOCK_METHOD2(GetConflictFiles,
                void(const GURL& origin,
                     const fileapi::SyncFileSetCallback& callback));
   MOCK_METHOD2(GetRemoteFileMetadata,
                void(const fileapi::FileSystemURL& url,
                     const fileapi::SyncFileMetadataCallback& callback));
@@ skipping 10 matching lines @@
                                const fileapi::SyncFileCallback& callback);
 
   scoped_ptr<LocalChangeProcessor> local_change_processor_;
 
   DISALLOW_COPY_AND_ASSIGN(MockRemoteFileSyncService);
 };
 
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_MOCK_REMOTE_FILE_SYNC_SERVICE_H_