[SyncFS] Make the snapshot sync of local-to-remote sync parallelization enabled. (2/3)

chrome/browser/sync_file_system/local/local_file_change_tracker.h

Index: chrome/browser/sync_file_system/local/local_file_change_tracker.h
diff --git a/chrome/browser/sync_file_system/local/local_file_change_tracker.h b/chrome/browser/sync_file_system/local/local_file_change_tracker.h
index 34fd457fbd387194e9fbab899f2e2192249a4bbe..5a5ccc19fda6747fd088df229d75a01ca73fe9d7 100644
--- a/chrome/browser/sync_file_system/local/local_file_change_tracker.h
+++ b/chrome/browser/sync_file_system/local/local_file_change_tracker.h
@@ -31,6 +31,7 @@ class FileSystemURL;
 
 namespace leveldb {
 class Env;
+class WriteBatch;
 }
 
 namespace sync_file_system {
@@ -164,6 +165,10 @@ class LocalFileChangeTracker
                                        FileChangeMap* changes,
                                        ChangeSeqMap* change_seqs);
 
+  void ResetForURL(const fileapi::FileSystemURL& url,
+                   int change_seq,
+                   leveldb::WriteBatch* batch);
+
   bool initialized_;
 
   scoped_refptr<base::SequencedTaskRunner> file_task_runner_;