Make LevelDBObserver an associated interface to LevelDBWrapper.

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 <memory>
@@ skipping 64 matching lines @@
   ZoomLevelDelegate* GetZoomLevelDelegate() override;
   PlatformNotificationContextImpl* GetPlatformNotificationContext() override;
 
   BackgroundSyncContext* GetBackgroundSyncContext();
   PaymentAppContextImpl* GetPaymentAppContext();
   BroadcastChannelProvider* GetBroadcastChannelProvider();
 
   // 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 132 matching lines @@
   BrowserContext* browser_context_;
 
   base::WeakPtrFactory<StoragePartitionImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(StoragePartitionImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_STORAGE_PARTITION_IMPL_H_