PaymentApp: Introduce PaymentAppDatabase class.

content/browser/storage_partition_impl.h

Index: content/browser/storage_partition_impl.h
diff --git a/content/browser/storage_partition_impl.h b/content/browser/storage_partition_impl.h
index b10f3abf237a135c13ff9f1b85c73f7ef6ff69a6..f00d02ff01cbb241dbed7310ca8c5cc63b5db144 100644
--- a/content/browser/storage_partition_impl.h
+++ b/content/browser/storage_partition_impl.h
@@ -22,7 +22,7 @@
 #include "content/browser/host_zoom_level_context.h"
 #include "content/browser/indexed_db/indexed_db_context_impl.h"
 #include "content/browser/notifications/platform_notification_context_impl.h"
-#include "content/browser/payments/payment_app_context.h"
+#include "content/browser/payments/payment_app_context_impl.h"
 #include "content/browser/service_worker/service_worker_context_wrapper.h"
 #include "content/common/content_export.h"
 #include "content/common/storage_partition_service.mojom.h"
@@ -75,7 +75,7 @@ class CONTENT_EXPORT  StoragePartitionImpl
   PlatformNotificationContextImpl* GetPlatformNotificationContext() override;
 
   BackgroundSyncContext* GetBackgroundSyncContext();
-  PaymentAppContext* GetPaymentAppContext();
+  PaymentAppContextImpl* GetPaymentAppContext();
   BroadcastChannelProvider* GetBroadcastChannelProvider();
 
   // mojom::StoragePartitionService interface.
@@ -180,7 +180,7 @@ class CONTENT_EXPORT  StoragePartitionImpl
       HostZoomLevelContext* host_zoom_level_context,
       PlatformNotificationContextImpl* platform_notification_context,
       BackgroundSyncContext* background_sync_context,
-      PaymentAppContext* payment_app_context,
+      PaymentAppContextImpl* payment_app_context,
       scoped_refptr<BroadcastChannelProvider>broadcast_channel_provider);
 
   // We will never have both remove_origin be populated and a cookie_matcher.
@@ -226,7 +226,7 @@ class CONTENT_EXPORT  StoragePartitionImpl
   scoped_refptr<HostZoomLevelContext> host_zoom_level_context_;
   scoped_refptr<PlatformNotificationContextImpl> platform_notification_context_;
   scoped_refptr<BackgroundSyncContext> background_sync_context_;
-  scoped_refptr<PaymentAppContext> payment_app_context_;
+  scoped_refptr<PaymentAppContextImpl> payment_app_context_;
   scoped_refptr<BroadcastChannelProvider> broadcast_channel_provider_;
 
   mojo::BindingSet<mojom::StoragePartitionService> bindings_;