Some fleshing out the mojo based localstorage implementation.

content/browser/storage_partition_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/browser/storage_partition_impl.h"
 
 #include <stddef.h>
 
 #include <set>
 #include <vector>
@@ skipping 569 matching lines @@
 StoragePartitionImpl::GetPlatformNotificationContext() {
   return platform_notification_context_.get();
 }
 
 BackgroundSyncContextImpl* StoragePartitionImpl::GetBackgroundSyncContext() {
   return background_sync_context_.get();
 }
 
 void StoragePartitionImpl::OpenLocalStorage(
     const url::Origin& origin,
+    mojom::LevelDBObserverPtr observer,
     mojo::InterfaceRequest<mojom::LevelDBWrapper> request) {
-  dom_storage_context_->OpenLocalStorage(origin, std::move(request));
+  dom_storage_context_->OpenLocalStorage(
+      origin, std::move(observer), std::move(request));
 }
 
 void StoragePartitionImpl::ClearDataImpl(
     uint32_t remove_mask,
     uint32_t quota_storage_remove_mask,
     const GURL& storage_origin,
     const OriginMatcherFunction& origin_matcher,
     net::URLRequestContextGetter* rq_context,
     const base::Time begin,
     const base::Time end,
@@ skipping 297 matching lines @@
     net::URLRequestContextGetter* url_request_context) {
   url_request_context_ = url_request_context;
 }
 
 void StoragePartitionImpl::SetMediaURLRequestContext(
     net::URLRequestContextGetter* media_url_request_context) {
   media_url_request_context_ = media_url_request_context;
 }
 
 }  // namespace content