[Sync] Migrate bridge implementations to change list based MergeSyncData

chrome/browser/chromeos/printing/printers_sync_bridge.h

Index: chrome/browser/chromeos/printing/printers_sync_bridge.h
diff --git a/chrome/browser/chromeos/printing/printers_sync_bridge.h b/chrome/browser/chromeos/printing/printers_sync_bridge.h
index 971b86c0ca07f7266680106eaf1e40955cc240b4..d51b56e4bc702ddc816e6faf6aeff44bda46e6d3 100644
--- a/chrome/browser/chromeos/printing/printers_sync_bridge.h
+++ b/chrome/browser/chromeos/printing/printers_sync_bridge.h
@@ -35,7 +35,7 @@ class PrintersSyncBridge : public syncer::ModelTypeSyncBridge {
       override;
   base::Optional<syncer::ModelError> MergeSyncData(
       std::unique_ptr<syncer::MetadataChangeList> metadata_change_list,
-      syncer::EntityDataMap entity_data_map) override;
+      syncer::EntityChangeList entity_data) override;
   base::Optional<syncer::ModelError> ApplySyncChanges(
       std::unique_ptr<syncer::MetadataChangeList> metadata_change_list,
       syncer::EntityChangeList entity_changes) override;