PaymentApp: Implement PaymentAppManager.setManifest().

content/browser/payments/payment_app_manager.h

Index: content/browser/payments/payment_app_manager.h
diff --git a/content/browser/payments/payment_app_manager.h b/content/browser/payments/payment_app_manager.h
index 7316c217e4774337eb23acabff79a8ce97dd1389..95168319f5d2227805110aa4da56e21c9f44bec4 100644
--- a/content/browser/payments/payment_app_manager.h
+++ b/content/browser/payments/payment_app_manager.h
@@ -11,11 +11,13 @@
 #include "base/memory/weak_ptr.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 "mojo/public/cpp/bindings/binding.h"
 
 namespace content {
 
 class PaymentAppContext;
+class ServiceWorkerRegistration;
 
 class CONTENT_EXPORT PaymentAppManager
     : public NON_EXPORTED_BASE(payments::mojom::PaymentAppManager) {
@@ -27,10 +29,18 @@ class CONTENT_EXPORT PaymentAppManager
   ~PaymentAppManager() override;
 
  private:
+  friend class PaymentAppManagerTest;
   // payments::mojom::PaymentAppManager methods:
   void SetManifest(const std::string& scope,
                    payments::mojom::PaymentAppManifestPtr manifest,
                    const SetManifestCallback& callback) override;
+  void DidFindRegistrationToSetManifest(
+      payments::mojom::PaymentAppManifestPtr manifest,
+      const SetManifestCallback& callback,
+      ServiceWorkerStatusCode status,
+      scoped_refptr<ServiceWorkerRegistration> registration);
+  void DidSetManifest(const SetManifestCallback& callback,
+                      ServiceWorkerStatusCode status);
 
   // Called when an error is detected on binding_.
   void OnConnectionError();