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

chrome/browser/chromeos/drive/file_system/search_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/search_operation.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 49 matching lines @@
       // directory in order to assign a path, which is needed to access the
       // file through FileSystem API.
       //
       // It will be moved to the right place when the metadata gets synced
       // in normal loading process in ChangeListProcessor.
       entry.set_parent_local_id(util::kDriveOtherDirLocalId);
       error = resource_metadata->AddEntry(entry, &local_id);
     }
     if (error != FILE_ERROR_OK)
       return error;
-    result->push_back(
-        SearchResultInfo(resource_metadata->GetFilePath(local_id),
-                         entry.file_info().is_directory()));
+    base::FilePath path;
+    error = resource_metadata->GetFilePath(local_id, &path);
+    if (error != FILE_ERROR_OK)
+      return error;
+    result->push_back(SearchResultInfo(path, entry.file_info().is_directory()));
   }
 
   return FILE_ERROR_OK;
 }
 
 }  // namespace
 
 SearchOperation::SearchOperation(
     base::SequencedTaskRunner* blocking_task_runner,
     JobScheduler* scheduler,
@@ skipping 89 matching lines @@
   if (error != FILE_ERROR_OK) {
     callback.Run(error, GURL(), scoped_ptr<std::vector<SearchResultInfo> >());
     return;
   }
 
   callback.Run(error, next_link, result.Pass());
 }
 
 }  // namespace file_system
 }  // namespace drive