[SyncFileSystem] Remove existing entry on LocalFileSyncContext::ApplyRemoteChange call.

webkit/fileapi/syncable/local_file_sync_context.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 WEBKIT_FILEAPI_SYNCABLE_LOCAL_FILE_SYNC_CONTEXT_H_
 #define WEBKIT_FILEAPI_SYNCABLE_LOCAL_FILE_SYNC_CONTEXT_H_
 
 #include <deque>
 #include <map>
 #include <set>
@@ skipping 215 matching lines @@
   // Callback routine for PrepareForSync and GetFileForLocalSync.
   void DidGetWritingStatusForSync(
       fileapi::FileSystemContext* file_system_context,
       SyncStatusCode status,
       const fileapi::FileSystemURL& url,
       const LocalFileSyncInfoCallback& callback);
 
   // Helper routine for ClearSyncFlagForURL.
   void EnableWritingOnIOThread(const fileapi::FileSystemURL& url);
 
+  void DidRemoveExistingEntryForApplyRemoteChange(
+      fileapi::FileSystemContext* file_system_context,
+      const FileChange& change,
+      const base::FilePath& local_path,
+      const fileapi::FileSystemURL& url,
+      const SyncStatusCallback& callback,
+      base::PlatformFileError error);
+
   // Callback routine for ApplyRemoteChange.
   void DidApplyRemoteChange(
       const fileapi::FileSystemURL& url,
       const SyncStatusCallback& callback_on_ui,
       base::PlatformFileError file_error);
 
   void DidGetFileMetadata(
       const SyncFileMetadataCallback& callback,
       base::PlatformFileError file_error,
       const base::PlatformFileInfo& file_info,
@@ skipping 43 matching lines @@
   ObserverList<LocalOriginChangeObserver> origin_change_observers_;
 
   int mock_notify_changes_duration_in_sec_;
 
   DISALLOW_COPY_AND_ASSIGN(LocalFileSyncContext);
 };
 
 }  // namespace sync_file_system
 
 #endif  // WEBKIT_FILEAPI_SYNCABLE_LOCAL_FILE_SYNC_CONTEXT_H_