Followup cleanup for WebDatabaseObserver

content/worker/worker_webkitplatformsupport_impl.cc

 // Copyright (c) 2012 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/worker/worker_webkitplatformsupport_impl.h"
 
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/platform_file.h"
@@ skipping 198 matching lines @@
                                                  sync_message_filter_.get());
 }
 
 blink::WebIDBFactory* WorkerWebKitPlatformSupportImpl::idbFactory() {
   if (!web_idb_factory_)
     web_idb_factory_.reset(
         new RendererWebIDBFactoryImpl(thread_safe_sender_.get()));
   return web_idb_factory_.get();
 }
 
-blink::WebPlatformDatabaseObserver*
+blink::WebDatabaseObserver*
 WorkerWebKitPlatformSupportImpl::databaseObserver() {
   return web_database_observer_impl_.get();
 }
 
 WebMimeRegistry::SupportsType
 WorkerWebKitPlatformSupportImpl::supportsMIMEType(
     const WebString&) {
   return WebMimeRegistry::IsSupported;
 }
 
@@ skipping 68 matching lines @@
     return;
   QuotaDispatcher::ThreadSpecificInstance(
       thread_safe_sender_.get(),
       quota_message_filter_.get())->QueryStorageUsageAndQuota(
           storage_partition,
           static_cast<quota::StorageType>(type),
           QuotaDispatcher::CreateWebStorageQuotaCallbacksWrapper(callbacks));
 }
 
 }  // namespace content