Send IndexedDB observations through IDBDatabaseCallbacks.

third_party/WebKit/Source/modules/indexeddb/IDBDatabaseCallbacks.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 45 matching lines @@
 void IDBDatabaseCallbacks::onAbort(int64_t transactionId, DOMException* error) {
   if (m_database)
     m_database->onAbort(transactionId, error);
 }
 
 void IDBDatabaseCallbacks::onComplete(int64_t transactionId) {
   if (m_database)
     m_database->onComplete(transactionId);
 }
 
+void IDBDatabaseCallbacks::onChanges(
+    const std::unordered_map<int32_t, std::vector<int32_t>>&
+        observation_index_map,
+    const WebVector<WebIDBObservation>& observations) {
+  if (m_database)
+    m_database->onChanges(observation_index_map, observations);
+}
+
 void IDBDatabaseCallbacks::connect(IDBDatabase* database) {
   DCHECK(!m_database);
   DCHECK(database);
   m_database = database;
 }
 
 std::unique_ptr<WebIDBDatabaseCallbacks>
 IDBDatabaseCallbacks::createWebCallbacks() {
   DCHECK(!m_webCallbacks);
   std::unique_ptr<WebIDBDatabaseCallbacks> callbacks =
       WebIDBDatabaseCallbacksImpl::create(this);
   m_webCallbacks = callbacks.get();
   return callbacks;
 }
 
 void IDBDatabaseCallbacks::detachWebCallbacks() {
   if (m_webCallbacks) {
     m_webCallbacks->detach();
     m_webCallbacks = nullptr;
   }
 }
 
 void IDBDatabaseCallbacks::webCallbacksDestroyed() {
   DCHECK(m_webCallbacks);
   m_webCallbacks = nullptr;
 }
 
 }  // namespace blink