Port messages sent by WebIDBFactoryImpl to Mojo.

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

 /*
  * Copyright (C) 2010 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 346 matching lines @@
 void IDBDatabase::closeConnection()
 {
     DCHECK(m_closePending);
     DCHECK(m_transactions.isEmpty());
 
     if (m_backend) {
         m_backend->close();
         m_backend.reset();
     }
 
+    if (m_databaseCallbacks)
+        m_databaseCallbacks->detachWebCallbacks();
+
     if (m_contextStopped || !getExecutionContext())
         return;
 
     EventQueue* eventQueue = getExecutionContext()->getEventQueue();
     // Remove any pending versionchange events scheduled to fire on this
     // connection. They would have been scheduled by the backend when another
     // connection attempted an upgrade, but the frontend connection is being
     // closed before they could fire.
     for (size_t i = 0; i < m_enqueuedEvents.size(); ++i) {
         bool removed = eventQueue->cancelEvent(m_enqueuedEvents[i].get());
@@ skipping 78 matching lines @@
 {
     m_contextStopped = true;
 
     // Immediately close the connection to the back end. Don't attempt a
     // normal close() since that may wait on transactions which require a
     // round trip to the back-end to abort.
     if (m_backend) {
         m_backend->close();
         m_backend.reset();
     }
+
+    if (m_databaseCallbacks)
+        m_databaseCallbacks->detachWebCallbacks();
 }
 
 const AtomicString& IDBDatabase::interfaceName() const
 {
     return EventTargetNames::IDBDatabase;
 }
 
 ExecutionContext* IDBDatabase::getExecutionContext() const
 {
     return ActiveDOMObject::getExecutionContext();
 }
 
 void IDBDatabase::recordApiCallsHistogram(IndexedDatabaseMethods method)
 {
     DEFINE_THREAD_SAFE_STATIC_LOCAL(EnumerationHistogram, apiCallsHistogram, new EnumerationHistogram("WebCore.IndexedDB.FrontEndAPICalls", IDBMethodsMax));
     apiCallsHistogram.count(method);
 }
 
 } // namespace blink