Fix inheritance in Reading List

components/reading_list/ios/reading_list_store.h

Index: components/reading_list/ios/reading_list_store.h
diff --git a/components/reading_list/ios/reading_list_store.h b/components/reading_list/ios/reading_list_store.h
index c8463c834bd99402e9065d4d7831a9c0541726f5..ff4b4d880774fdcdb23b4629b659afeab57dde15 100644
--- a/components/reading_list/ios/reading_list_store.h
+++ b/components/reading_list/ios/reading_list_store.h
@@ -9,7 +9,6 @@
 #include "components/reading_list/ios/reading_list_model_storage.h"
 #include "components/reading_list/ios/reading_list_store_delegate.h"
 #include "components/sync/model/model_type_store.h"
-#include "components/sync/model/model_type_sync_bridge.h"
 
 namespace syncer {
 class MutableDataBatch;
@@ -18,8 +17,7 @@ class MutableDataBatch;
 class ReadingListModel;
 
 // A ReadingListModelStorage storing and syncing data in protobufs.
-class ReadingListStore : public syncer::ModelTypeSyncBridge,
-                         public ReadingListModelStorage,
+class ReadingListStore : public ReadingListModelStorage,
                          public base::NonThreadSafe {
   using StoreFactoryFunction = base::Callback<void(
       const syncer::ModelTypeStore::InitCallback& callback)>;
@@ -38,9 +36,6 @@ class ReadingListStore : public syncer::ModelTypeSyncBridge,
   void SaveEntry(const ReadingListEntry& entry) override;
   void RemoveEntry(const ReadingListEntry& entry) override;
 
-  // ReadingListModelStorage implementation.
-  syncer::ModelTypeSyncBridge* GetModelTypeSyncBridge() override;
-
   // Creates an object used to communicate changes in the sync metadata to the
   // model type store.
   std::unique_ptr<syncer::MetadataChangeList> CreateMetadataChangeList()