Remove most ScopedVector usage from c/b/extensions.

chrome/browser/extensions/api/storage/setting_sync_data.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_STORAGE_SETTING_SYNC_DATA_H_
 #define CHROME_BROWSER_EXTENSIONS_API_STORAGE_SETTING_SYNC_DATA_H_
 
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
-#include "base/memory/scoped_vector.h"
 #include "base/values.h"
 #include "components/sync/api/sync_change.h"
 
 namespace syncer {
 class SyncData;
 }
 
 namespace sync_pb {
 class ExtensionSettingSpecifics;
 }
@@ skipping 38 matching lines @@
   void ExtractSyncData(const syncer::SyncData& sync_data);
 
   syncer::SyncChange::SyncChangeType change_type_;
   std::string extension_id_;
   std::string key_;
   std::unique_ptr<base::Value> value_;
 
   DISALLOW_COPY_AND_ASSIGN(SettingSyncData);
 };
 
-typedef ScopedVector<SettingSyncData> SettingSyncDataList;
+using SettingSyncDataList = std::vector<std::unique_ptr<SettingSyncData>>;
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_STORAGE_SETTING_SYNC_DATA_H_