[Payments] Introduce basic interactive browsertests for Payment Request

components/payments/payment_request_web_contents_manager.h

 // Copyright 2017 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 COMPONENTS_PAYMENTS_PAYMENT_REQUEST_WEB_CONTENTS_MANAGER_H_
 #define COMPONENTS_PAYMENTS_PAYMENT_REQUEST_WEB_CONTENTS_MANAGER_H_
 
 #include <unordered_map>
 
 #include "components/payments/payment_request.h"
@@ skipping 28 matching lines @@
       content::WebContents* web_contents,
       std::unique_ptr<PaymentRequestDelegate> delegate,
       mojo::InterfaceRequest<payments::mojom::PaymentRequest> request);
 
   // Destroys the given |request|.
   void DestroyRequest(PaymentRequest* request);
 
  private:
   explicit PaymentRequestWebContentsManager(content::WebContents* web_contents);
   friend class content::WebContentsUserData<PaymentRequestWebContentsManager>;
-  friend class PaymentRequestWebContentsManagerBrowserTest;
+  friend class PaymentRequestInteractiveTestBase;
 
   // Owns all the PaymentRequest for this WebContents. Since the
   // PaymentRequestWebContentsManager's lifetime is tied to the WebContents,
   // these requests only get destroyed when the WebContents goes away, or when
   // the requests themselves call DestroyRequest().
   std::unordered_map<PaymentRequest*, std::unique_ptr<PaymentRequest>>
       payment_requests_;
 };
 
 }  // namespace payments
 
-#endif  // COMPONENTS_PAYMENTS_PAYMENT_REQUEST_IMPL_H_
+#endif  // COMPONENTS_PAYMENTS_PAYMENT_REQUEST_WEB_CONTENTS_MANAGER_H_