PaymentApp: Add PaymentAppProvider class.

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 55 matching lines @@
   storage::FileSystemContext* GetFileSystemContext() override;
   storage::DatabaseTracker* GetDatabaseTracker() override;
   DOMStorageContextWrapper* GetDOMStorageContext() override;
   IndexedDBContextImpl* GetIndexedDBContext() override;
   CacheStorageContextImpl* GetCacheStorageContext() override;
   ServiceWorkerContextWrapper* GetServiceWorkerContext() override;
   HostZoomMap* GetHostZoomMap() override;
   HostZoomLevelContext* GetHostZoomLevelContext() override;
   ZoomLevelDelegate* GetZoomLevelDelegate() override;
   PlatformNotificationContextImpl* GetPlatformNotificationContext() override;
-  PaymentAppContextImpl* GetPaymentAppContext() override;
 
   BackgroundSyncContext* GetBackgroundSyncContext();
+  PaymentAppContextImpl* GetPaymentAppContext();
   BroadcastChannelProvider* GetBroadcastChannelProvider();
 
   // mojom::StoragePartitionService interface.
   void OpenLocalStorage(
       const url::Origin& origin,
       mojo::InterfaceRequest<mojom::LevelDBWrapper> request) override;
 
   void ClearDataForOrigin(uint32_t remove_mask,
                           uint32_t quota_storage_remove_mask,
                           const GURL& storage_origin,
@@ skipping 145 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_