[Sync] Fixing easy lint violations.

components/sync/core/test/test_internal_components_factory.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 COMPONENTS_SYNC_CORE_TEST_TEST_INTERNAL_COMPONENTS_FACTORY_H_
 #define COMPONENTS_SYNC_CORE_TEST_TEST_INTERNAL_COMPONENTS_FACTORY_H_
 
+#include <memory>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "components/sync/core/internal_components_factory.h"
 
 namespace syncer {
 
 class TestInternalComponentsFactory : public InternalComponentsFactory {
  public:
@@ skipping 27 matching lines @@
   const Switches switches_;
   const StorageOption storage_override_;
   StorageOption* storage_used_;
 
   DISALLOW_COPY_AND_ASSIGN(TestInternalComponentsFactory);
 };
 
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_CORE_TEST_TEST_INTERNAL_COMPONENTS_FACTORY_H_