Fix inheritance in Reading List

components/reading_list/ios/reading_list_store.cc

Index: components/reading_list/ios/reading_list_store.cc
diff --git a/components/reading_list/ios/reading_list_store.cc b/components/reading_list/ios/reading_list_store.cc
index beb300bfc62eaab3f59d24a67f8fce7aa37d0485..4b1f81ab26f4142186e234d27743c24372e98deb 100644
--- a/components/reading_list/ios/reading_list_store.cc
+++ b/components/reading_list/ios/reading_list_store.cc
@@ -20,7 +20,7 @@
 ReadingListStore::ReadingListStore(
     StoreFactoryFunction create_store_callback,
     const ChangeProcessorFactory& change_processor_factory)
-    : ModelTypeSyncBridge(change_processor_factory, syncer::READING_LIST),
+    : ReadingListModelStorage(change_processor_factory, syncer::READING_LIST),
       create_store_callback_(create_store_callback),
       pending_transaction_count_(0) {}
 
@@ -176,10 +176,6 @@ void ReadingListStore::OnStoreCreated(
   return;
 }
 
-syncer::ModelTypeSyncBridge* ReadingListStore::GetModelTypeSyncBridge() {
-  return this;
-}
-
 // Creates an object used to communicate changes in the sync metadata to the
 // model type store.
 std::unique_ptr<syncer::MetadataChangeList>