[Sync] Migrate bridge implementations to change list based MergeSyncData

components/reading_list/core/reading_list_model_unittest.cc

Index: components/reading_list/core/reading_list_model_unittest.cc
diff --git a/components/reading_list/core/reading_list_model_unittest.cc b/components/reading_list/core/reading_list_model_unittest.cc
index c79a63578dc12643dfaa0e2f6b918293fc76dbd3..c71c731eed471bebe362e2cd02330e36f8017284 100644
--- a/components/reading_list/core/reading_list_model_unittest.cc
+++ b/components/reading_list/core/reading_list_model_unittest.cc
@@ -115,7 +115,7 @@ class TestReadingListStorage : public ReadingListModelStorage {
 
   base::Optional<syncer::ModelError> MergeSyncData(
       std::unique_ptr<syncer::MetadataChangeList> metadata_change_list,
-      syncer::EntityDataMap entity_data_map) override {
+      syncer::EntityChangeList entity_data) override {
     NOTREACHED();
     return {};
   }