Some fleshing out the mojo based localstorage implementation.

content/browser/storage_partition_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_STORAGE_PARTITION_IMPL_H_
 #define CONTENT_BROWSER_STORAGE_PARTITION_IMPL_H_
 
 #include <stdint.h>
 
 #include "base/compiler_specific.h"
@@ skipping 47 matching lines @@
   GeofencingManager* GetGeofencingManager() override;
   HostZoomMap* GetHostZoomMap() override;
   HostZoomLevelContext* GetHostZoomLevelContext() override;
   ZoomLevelDelegate* GetZoomLevelDelegate() override;
   PlatformNotificationContextImpl* GetPlatformNotificationContext() override;
   BackgroundSyncContextImpl* GetBackgroundSyncContext() override;
 
   // mojom::StoragePartitionService interface.
   void OpenLocalStorage(
       const url::Origin& origin,
+      mojom::LevelDBObserverPtr observer,
       mojo::InterfaceRequest<mojom::LevelDBWrapper> request) override;
 
   void ClearDataForOrigin(uint32_t remove_mask,
                           uint32_t quota_storage_remove_mask,
                           const GURL& storage_origin,
                           net::URLRequestContextGetter* request_context_getter,
                           const base::Closure& callback) override;
   void ClearData(uint32_t remove_mask,
                  uint32_t quota_storage_remove_mask,
                  const GURL& storage_origin,
@@ skipping 130 matching lines @@
   // StoragePartitionImplMap which then owns StoragePartitionImpl. When the
   // BrowserContext is destroyed, |this| will be destroyed too.
   BrowserContext* browser_context_;
 
   DISALLOW_COPY_AND_ASSIGN(StoragePartitionImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_STORAGE_PARTITION_IMPL_H_