Dispatch IndexedDB IPC messages to worker threads

content/browser/in_process_webkit/indexed_db_database_callbacks.cc

 // Copyright (c) 2011 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 "content/browser/in_process_webkit/indexed_db_database_callbacks.h"
 
 #include "content/browser/in_process_webkit/indexed_db_dispatcher_host.h"
 #include "content/common/indexed_db_messages.h"
 
 IndexedDBDatabaseCallbacks::IndexedDBDatabaseCallbacks(
     IndexedDBDispatcherHost* dispatcher_host,
+    int thread_id,
     int database_id)
     : dispatcher_host_(dispatcher_host),
+      thread_id_(thread_id),
       database_id_(database_id) {
 }
 
 IndexedDBDatabaseCallbacks::~IndexedDBDatabaseCallbacks() {
 }
 
 void IndexedDBDatabaseCallbacks::onVersionChange(
     const WebKit::WebString& requested_version) {
   dispatcher_host_->Send(
-      new IndexedDBMsg_DatabaseCallbacksVersionChange(
-          database_id_, requested_version));
+      new IndexedDBMsg_DatabaseCallbacksVersionChange(thread_id_, database_id_,
+                                                      requested_version));
 }