Rewrite simple uses of base::ListValue::Append() taking a raw pointer var.

chrome/browser/extensions/api/file_system/file_system_api.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/extensions/api/file_system/file_system_api.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <set>
@@ skipping 528 matching lines @@
   GrantedFileEntry file_entry = app_file_handler_util::CreateFileEntry(
       GetProfile(),
       extension(),
       render_frame_host()->GetProcess()->GetID(),
       path,
       is_directory_);
   base::ListValue* entries;
   bool success = result->GetList("entries", &entries);
   DCHECK(success);
 
-  base::DictionaryValue* entry = new base::DictionaryValue();
+  std::unique_ptr<base::DictionaryValue> entry(new base::DictionaryValue());
   entry->SetString("fileSystemId", file_entry.filesystem_id);
   entry->SetString("baseName", file_entry.registered_name);
   if (id_override.empty())
     entry->SetString("id", file_entry.id);
   else
     entry->SetString("id", id_override);
   entry->SetBoolean("isDirectory", is_directory_);
-  entries->Append(entry);
+  entries->Append(std::move(entry));
 }
 
 void FileSystemEntryFunction::HandleWritableFileError(
     const base::FilePath& error_path) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   error_ = base::StringPrintf(kWritableFileErrorFormat,
                               error_path.BaseName().AsUTF8Unsafe().c_str());
   SendResponse(false);
 }
 
@@ skipping 880 matching lines @@
     return RespondNow(Error(kNotSupportedOnNonKioskSessionError));
   std::vector<api::file_system::Volume> result_volume_list;
   FillVolumeList(chrome_details_.GetProfile(), &result_volume_list);
 
   return RespondNow(ArgumentList(
       api::file_system::GetVolumeList::Results::Create(result_volume_list)));
 }
 #endif
 
 }  // namespace extensions