Dispatch IndexedDB IPC messages to worker threads

content/renderer/renderer_webidbfactory_impl.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/renderer/renderer_webidbfactory_impl.h"
 
 #include "content/renderer/render_thread_impl.h"
 #include "content/renderer/indexed_db_dispatcher.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDOMStringList.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebString.h"
 
 using WebKit::WebDOMStringList;
 using WebKit::WebFrame;
 using WebKit::WebIDBCallbacks;
 using WebKit::WebIDBDatabase;
 using WebKit::WebSecurityOrigin;
 using WebKit::WebString;
 
 RendererWebIDBFactoryImpl::RendererWebIDBFactoryImpl() {
 }
 
 RendererWebIDBFactoryImpl::~RendererWebIDBFactoryImpl() {
 }
 
 void RendererWebIDBFactoryImpl::getDatabaseNames(
     WebIDBCallbacks* callbacks,
     const WebSecurityOrigin& origin,
     WebFrame* web_frame,
     const WebString& data_dir_unused) {
-  IndexedDBDispatcher* dispatcher =
-      RenderThreadImpl::current()->indexed_db_dispatcher();
+  IndexedDBDispatcher* dispatcher = IndexedDBDispatcher::Instance();
   dispatcher->RequestIDBFactoryGetDatabaseNames(
       callbacks, origin.databaseIdentifier(), web_frame);
 }
 
 void RendererWebIDBFactoryImpl::open(
     const WebString& name,
     WebIDBCallbacks* callbacks,
     const WebSecurityOrigin& origin,
     WebFrame* web_frame,
     const WebString& data_dir) {
   // Don't send the data_dir. We know what we want on the Browser side of
   // things.
-  IndexedDBDispatcher* dispatcher =
-      RenderThreadImpl::current()->indexed_db_dispatcher();
+  IndexedDBDispatcher* dispatcher = IndexedDBDispatcher::Instance();
   dispatcher->RequestIDBFactoryOpen(
       name, callbacks, origin.databaseIdentifier(), web_frame);
 }
 
 void RendererWebIDBFactoryImpl::deleteDatabase(
     const WebString& name,
     WebIDBCallbacks* callbacks,
     const WebSecurityOrigin& origin,
     WebFrame* web_frame,
     const WebString& data_dir) {
   // Don't send the data_dir. We know what we want on the Browser side of
   // things.
-  IndexedDBDispatcher* dispatcher =
-      RenderThreadImpl::current()->indexed_db_dispatcher();
+  IndexedDBDispatcher* dispatcher = IndexedDBDispatcher::Instance();
   dispatcher->RequestIDBFactoryDeleteDatabase(
       name, callbacks, origin.databaseIdentifier(), web_frame);
 }