Sync FileSystem: Update metadata database even when the file is not modified.

chrome/browser/sync_file_system/drive_file_sync_service.cc

 // 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.
 
 #include "chrome/browser/sync_file_system/drive_file_sync_service.h"
 
 #include <algorithm>
 #include <string>
 #include <utility>
 
@@ skipping 1527 matching lines @@
       base::Bind(&DriveFileSyncService::DidDownloadFileForRemoteSync,
                  AsWeakPtr(), base::Passed(&param)));
 }
 
 void DriveFileSyncService::DidDownloadFileForRemoteSync(
     scoped_ptr<ProcessRemoteChangeParam> param,
     google_apis::GDataErrorCode error,
     const std::string& md5_checksum) {
   if (error == google_apis::HTTP_NOT_MODIFIED) {
     param->sync_action = fileapi::SYNC_ACTION_NONE;
-    CompleteRemoteSync(param.Pass(), fileapi::SYNC_STATUS_OK);
+    DidApplyRemoteChange(param.Pass(), fileapi::SYNC_STATUS_OK);
     return;
   }
 
   fileapi::SyncStatusCode status = GDataErrorCodeToSyncStatusCodeWrapper(error);
   if (status != fileapi::SYNC_STATUS_OK) {
     AbortRemoteSync(param.Pass(), status);
     return;
   }
 
   param->drive_metadata.set_md5_checksum(md5_checksum);
@@ skipping 463 matching lines @@
 fileapi::SyncStatusCode
 DriveFileSyncService::GDataErrorCodeToSyncStatusCodeWrapper(
     google_apis::GDataErrorCode error) const {
   fileapi::SyncStatusCode status = GDataErrorCodeToSyncStatusCode(error);
   if (status != fileapi::SYNC_STATUS_OK && !sync_client_->IsAuthenticated())
     return fileapi::SYNC_STATUS_AUTHENTICATION_FAILED;
   return status;
 }
 
 }  // namespace sync_file_system