[Extensions] Convert APIs to use movable types [5]

chrome/browser/chromeos/extensions/file_manager/private_api_mount.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/extensions/file_manager/private_api_mount.h"
 
 #include <string>
 
 #include "base/files/file_util.h"
 #include "base/format_macros.h"
@@ skipping 209 matching lines @@
 }
 
 bool FileManagerPrivateGetVolumeMetadataListFunction::RunAsync() {
   if (args_->GetSize())
     return false;
 
   const std::vector<base::WeakPtr<file_manager::Volume>>& volume_list =
       file_manager::VolumeManager::Get(GetProfile())->GetVolumeList();
 
   std::string log_string;
-  std::vector<linked_ptr<file_manager_private::VolumeMetadata> > result;
+  std::vector<file_manager_private::VolumeMetadata> result;
   for (const auto& volume : volume_list) {
-    linked_ptr<file_manager_private::VolumeMetadata> volume_metadata(
-        new file_manager_private::VolumeMetadata);
-    file_manager::util::VolumeToVolumeMetadata(GetProfile(), *volume.get(),
-                                               volume_metadata.get());
-    result.push_back(volume_metadata);
+    file_manager_private::VolumeMetadata volume_metadata;
+    file_manager::util::VolumeToVolumeMetadata(GetProfile(), *volume,
+                                               &volume_metadata);
+    result.push_back(std::move(volume_metadata));
     if (!log_string.empty())
       log_string += ", ";
     log_string += volume->mount_path().AsUTF8Unsafe();
   }
 
   drive::EventLogger* logger = file_manager::util::GetLogger(GetProfile());
   if (logger) {
     logger->Log(logging::LOG_INFO,
                 "%s[%d] succeeded. (results: '[%s]', %" PRIuS " mount points)",
                 name(), request_id(), log_string.c_str(), result.size());
   }
 
   results_ =
       file_manager_private::GetVolumeMetadataList::Results::Create(result);
   SendResponse(true);
   return true;
 }
 
 }  // namespace extensions