drive: Change the return type of ResourceMetadata's methods to FileError

chrome/browser/chromeos/drive/file_system/download_operation.cc

 // 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.
 
 #include "chrome/browser/chromeos/drive/file_system/download_operation.h"
 
 #include "base/callback_helpers.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
@@ skipping 165 matching lines @@
 
 // Calls CheckPreConditionForEnsureFileDownloaded() with the entry specified by
 // the given ID. Also fills |drive_file_path| with the path of the entry.
 FileError CheckPreConditionForEnsureFileDownloadedByLocalId(
     const CheckPreconditionForEnsureFileDownloadedParams& params,
     const std::string& local_id,
     base::FilePath* drive_file_path,
     base::FilePath* cache_file_path,
     base::FilePath* temp_download_file_path,
     ResourceEntry* entry) {
-  *drive_file_path = params.metadata->GetFilePath(local_id);
+  FileError error = params.metadata->GetFilePath(local_id, drive_file_path);
+  if (error != FILE_ERROR_OK)
+    return error;
   return CheckPreConditionForEnsureFileDownloaded(
       params.metadata, params.cache, params.temporary_file_directory, local_id,
       entry, cache_file_path, temp_download_file_path);
 }
 
 // Calls CheckPreConditionForEnsureFileDownloaded() with the entry specified by
 // the given file path.
 FileError CheckPreConditionForEnsureFileDownloadedByPath(
     const CheckPreconditionForEnsureFileDownloadedParams& params,
     const base::FilePath& file_path,
@@ skipping 318 matching lines @@
   observer_->OnDirectoryChangedByOperation(file_path.DirName());
   params->OnComplete(*cache_file_path);
 }
 
 void DownloadOperation::CancelJob(JobID job_id) {
   scheduler_->CancelJob(job_id);
 }
 
 }  // namespace file_system
 }  // namespace drive