Fix inheritance in Reading List

components/reading_list/ios/reading_list_model_impl.cc

 // Copyright 2016 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.
 
 #include "components/reading_list/ios/reading_list_model_impl.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/string_util.h"
@@ skipping 386 matching lines @@
     return false;
   }
   return pref_service_->GetBoolean(
       reading_list::prefs::kReadingListHasUnseenEntries);
 }
 
 syncer::ModelTypeSyncBridge* ReadingListModelImpl::GetModelTypeSyncBridge() {
   DCHECK(loaded());
   if (!storage_layer_)
     return nullptr;
-  return storage_layer_->GetModelTypeSyncBridge();
+  return storage_layer_.get();
 }
 
 ReadingListModelStorage* ReadingListModelImpl::StorageLayer() {
   return storage_layer_.get();
 }