Re-write many calls to WrapUnique() with MakeUnique()

components/sync/core_impl/model_type_connector_proxy_unittest.cc

Index: components/sync/core_impl/model_type_connector_proxy_unittest.cc
diff --git a/components/sync/core_impl/model_type_connector_proxy_unittest.cc b/components/sync/core_impl/model_type_connector_proxy_unittest.cc
index 40e0bc9b2a8627efd8a15fc929fa7065c27a0a3e..c266e80168f803f2b5bbcffc98af29a00c2fcddb 100644
--- a/components/sync/core_impl/model_type_connector_proxy_unittest.cc
+++ b/components/sync/core_impl/model_type_connector_proxy_unittest.cc
@@ -67,7 +67,7 @@ class ModelTypeConnectorProxyTest : public ::testing::Test,
     std::unique_ptr<SharedModelTypeProcessor> processor =
         base::WrapUnique(new SharedModelTypeProcessor(syncer::THEMES, this));
     processor->OnMetadataLoaded(syncer::SyncError(),
-                                base::WrapUnique(new MetadataBatch()));
+                                base::MakeUnique<MetadataBatch>());
     return processor;
   }