PaymentApp: Factor out functions to serialize/deserialize manifest data.

content/browser/payments/payment_app_context_impl.h

 // Copyright 2016 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_PAYMENTS_PAYMENT_APP_CONTEXT_H_
-#define CONTENT_BROWSER_PAYMENTS_PAYMENT_APP_CONTEXT_H_
+#ifndef CONTENT_BROWSER_PAYMENTS_PAYMENT_APP_CONTEXT_IMPL_H_
+#define CONTENT_BROWSER_PAYMENTS_PAYMENT_APP_CONTEXT_IMPL_H_
 
 #include <map>
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "components/payments/payment_app.mojom.h"
 #include "content/common/content_export.h"
+#include "content/common/service_worker/service_worker_status_code.h"
+#include "content/public/browser/payment_app_context.h"
 
 namespace content {
 
 class PaymentAppManager;
 class ServiceWorkerContextWrapper;
 
-class CONTENT_EXPORT PaymentAppContext
-    : public base::RefCountedThreadSafe<PaymentAppContext> {
+class CONTENT_EXPORT PaymentAppContextImpl
+    : NON_EXPORTED_BASE(public PaymentAppContext),
+      public base::RefCountedThreadSafe<PaymentAppContextImpl> {
  public:
-  explicit PaymentAppContext(
+  explicit PaymentAppContextImpl(
       scoped_refptr<ServiceWorkerContextWrapper> service_worker_context);
 
   // Shutdown must be called before deleting this. Call on the UI thread.
   void Shutdown();
 
   // Create a PaymentAppManager that is owned by this. Call on the UI
   // thread.
   void CreateService(
       mojo::InterfaceRequest<payments::mojom::PaymentAppManager> request);
 
   // Called by PaymentAppManager objects so that they can
   // be deleted. Call on the IO thread.
   void ServiceHadConnectionError(PaymentAppManager* service);
 
   ServiceWorkerContextWrapper* service_worker_context() const;
 
+  void GetAllManifests(const GetAllManifestsCallback& callback) override;
+  void GetAllManifestsOnIO(const GetAllManifestsCallback& callback);
+  void DidGetAllManifests(
+      const GetAllManifestsCallback& callback,
+      const std::vector<std::pair<int64_t, std::string>>& user_data,
+      ServiceWorkerStatusCode status);
+  void GetAll(const GetManifestsCallback& callback);
+
  protected:
-  friend class base::RefCountedThreadSafe<PaymentAppContext>;
+  friend class base::RefCountedThreadSafe<PaymentAppContextImpl>;
   friend class PaymentAppManagerTest;
-  virtual ~PaymentAppContext();
+  virtual ~PaymentAppContextImpl();
 
  private:
   void CreateServiceOnIOThread(
       mojo::InterfaceRequest<payments::mojom::PaymentAppManager> request);
 
   void ShutdownOnIO();
 
   scoped_refptr<ServiceWorkerContextWrapper> service_worker_context_;
 
   // The services are owned by this. They're either deleted
   // during ShutdownOnIO or when the channel is closed via
   // ServiceHadConnectionError. Only accessed on the IO thread.
   std::map<PaymentAppManager*, std::unique_ptr<PaymentAppManager>> services_;
 
-  DISALLOW_COPY_AND_ASSIGN(PaymentAppContext);
+  base::WeakPtrFactory<PaymentAppContextImpl> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(PaymentAppContextImpl);
 };
 
 }  // namespace content
 
-#endif  // CONTENT_BROWSER_PAYMENTS_PAYMENT_APP_CONTEXT_H_
+#endif  // CONTENT_BROWSER_PAYMENTS_PAYMENT_APP_CONTEXT_IMPL_H_