[Sync] Renamed OnMetadataLoaded to ModelReadyToSync.

components/sync/device_info/device_info_sync_bridge_unittest.cc

 // Copyright 2015 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/sync/device_info/device_info_sync_bridge.h"
 
 #include <algorithm>
 #include <set>
 #include <utility>
 
@@ skipping 172 matching lines @@
            std::unique_ptr<EntityData> entity_data,
            MetadataChangeList* metadata_changes) override {
     put_multimap_.insert(std::make_pair(storage_key, std::move(entity_data)));
   }
 
   void Delete(const std::string& storage_key,
               MetadataChangeList* metadata_changes) override {
     delete_set_.insert(storage_key);
   }
 
-  void OnMetadataLoaded(std::unique_ptr<MetadataBatch> batch) override {
+  void ModelReadyToSync(std::unique_ptr<MetadataBatch> batch) override {
     std::swap(metadata_, batch);
   }
 
   const std::multimap<std::string, std::unique_ptr<EntityData>>& put_multimap()
       const {
     return put_multimap_;
   }
   const std::set<std::string>& delete_set() const { return delete_set_; }
   const MetadataBatch* metadata() const { return metadata_.get(); }
 
@@ skipping 607 matching lines @@
 
   // Reloading from storage shouldn't contain remote data.
   RestartBridge();
   EXPECT_EQ(1u, bridge()->GetAllDeviceInfo().size());
   EXPECT_EQ(4, change_count());
 }
 
 }  // namespace
 
 }  // namespace syncer